{"id":4583,"date":"2022-09-25T20:21:34","date_gmt":"2022-09-25T20:21:34","guid":{"rendered":"https:\/\/www.studyzonebd.com\/math\/?p=4583"},"modified":"2022-09-25T20:39:40","modified_gmt":"2022-09-25T20:39:40","slug":"class-7-chapter-7-lesson-7-1","status":"publish","type":"post","link":"https:\/\/www.studyzonebd.com\/math\/class-7-chapter-7-lesson-7-1\/","title":{"rendered":"\u09ed\u09ae \u0985\u09a7\u09cd\u09af\u09be\u09df\u0983 \u09b8\u09b0\u09b2 \u09b8\u09ae\u09c0\u0995\u09b0\u09a3 | \u0985\u09a8\u09c1\u09b6\u09c0\u09b2\u09a8\u09c0 \u09ed.\u09e7 | \u09b8\u09aa\u09cd\u09a4\u09ae \u09b6\u09cd\u09b0\u09c7\u09a3\u09bf"},"content":{"rendered":"\n

\u09ed\u09ae \u0985\u09a7\u09cd\u09af\u09be\u09df\u0983 \u09b8\u09b0\u09b2 \u09b8\u09ae\u09c0\u0995\u09b0\u09a3 | \u09ed\u09ae \u09b6\u09cd\u09b0\u09c7\u09a3\u09bf \u0997\u09a3\u09bf\u09a4 \u09ac\u0987 \u09b8\u09ae\u09cd\u09aa\u09c2\u09b0\u09cd\u09a3 \u09b8\u09ae\u09be\u09a7\u09be\u09a8 | Class Seven (07) Math <\/a>Book Solution | Chapter <\/a>07 : Simple Equation<\/p>\n\n\n\n

\u09ed\u09ae \u0985\u09a7\u09cd\u09af\u09be\u09df\u0983 \u09b8\u09b0\u09b2 \u09b8\u09ae\u09c0\u0995\u09b0\u09a3 | \u0985\u09a8\u09c1\u09b6\u09c0\u09b2\u09a8\u09c0 \u09ed.\u09e7: \u09b8\u09ae\u09c0\u0995\u09b0\u09a3 \u09b8\u09ae\u09be\u09a7\u09be\u09a8<\/h4>\n\n\n\n

\u09ed\u09ae \u0985\u09a7\u09cd\u09af\u09be\u09df\u0983 \u09b8\u09b0\u09b2 \u09b8\u09ae\u09c0\u0995\u09b0\u09a3 | \u0985\u09a8\u09c1\u09b6\u09c0\u09b2\u09a8\u09c0 \u09ed.\u09e7 \u098f\u09b0 \u09b8\u0995\u09b2 \u09aa\u09cd\u09b0\u09b6\u09cd\u09a8 \u0993 \u0989\u09a4\u09cd\u09a4\u09b0 \u098f\u0996\u09be\u09a8\u09c7 \u09b0\u09df\u09c7\u099b\u09c7\u0964 \u09ed\u09ae \u09b6\u09cd\u09b0\u09c7\u09a3\u09bf \u09b8\u09ae\u09cd\u09aa\u09c2\u09b0\u09cd\u09a3 \u0997\u09a3\u09bf\u09a4 \u09ac\u0987 \u09b8\u09ae\u09be\u09a7\u09be\u09a8<\/p>\n\n\n\n

\u09ed\u09ae \u09b6\u09cd\u09b0\u09c7\u09a3\u09bf\u09b0 \u0997\u09a3\u09bf\u09a4 \u09ed\u09ae \u0985\u09a7\u09cd\u09af\u09be\u09df \u0985\u09a8\u09c1\u09b6\u09c0\u09b2\u09a8\u09c0 \u09ed.\u09e7 \u09aa\u09cd\u09b0\u09b6\u09cd\u09a8 \u0993 \u09b8\u09ae\u09be\u09a7\u09be\u09a8<\/strong><\/span><\/h4>\n\n\n\n

\u09b8\u09ae\u09be\u09a7\u09be\u09a8 \u0995\u09b0\u0983<\/strong><\/p>\n\n\n\n

\u09e7. 4x+1=2x+7<\/strong><\/p>\n\n\n\n

\u09b8\u09ae\u09be\u09a7\u09be\u09a8:<\/p>\n\n\n\n

4x+1=2x+7
\u09ac\u09be, 4x-2x=7-1 [\u09aa\u0995\u09cd\u09b7\u09be\u09a8\u09cd\u09a4\u09b0 \u0995\u09b0\u09c7]
\u09ac\u09be, 2x=6
\u09ac\u09be, x=6\/2
\u09ac\u09be, x=3
\u2234\u09a8\u09bf\u09b0\u09cd\u09a3\u09c7\u09af\u09bc \u09b8\u09ae\u09be\u09a7\u09be\u09a8\u0983 x=3<\/p>\n\n\n\n

\u09e8. 5x-3=2x+3<\/strong><\/p>\n\n\n\n

\u09b8\u09ae\u09be\u09a7\u09be\u09a8:<\/p>\n\n\n\n

5x-3=2x+3
\u09ac\u09be, 5x-2x=3+3 [\u09aa\u0995\u09cd\u09b7\u09be\u09a8\u09cd\u09a4\u09b0 \u0995\u09b0\u09c7]
\u09ac\u09be, 3x=6
\u09ac\u09be, x=6\/3
\u09ac\u09be, x=2
\u2234\u09a8\u09bf\u09b0\u09cd\u09a3\u09c7\u09af\u09bc \u09b8\u09ae\u09be\u09a7\u09be\u09a8\u0983 x=2<\/p>\n\n\n\n

\u09e9. 3y+1=7y-1<\/strong><\/p>\n\n\n\n

\u09b8\u09ae\u09be\u09a7\u09be\u09a8:<\/p>\n\n\n\n

3y+1=7y-1
\u09ac\u09be, 3y-7y=-1-1\u00a0[\u09aa\u0995\u09cd\u09b7\u09be\u09a8\u09cd\u09a4\u09b0 \u0995\u09b0\u09c7]
\u09ac\u09be, -4y=-2
\u09ac\u09be, y=-2\/-4
\u09ac\u09be, y=1\/2
\u2234\u09a8\u09bf\u09b0\u09cd\u09a3\u09c7\u09af\u09bc \u09b8\u09ae\u09be\u09a7\u09be\u09a8\u0983 y=1<\/sup>\/2<\/p>\n\n\n\n

\u09ea. 7y-5=y-1<\/strong><\/p>\n\n\n\n

\u09b8\u09ae\u09be\u09a7\u09be\u09a8:<\/p>\n\n\n\n

7y-5=y-1
\u09ac\u09be, 7y-y=-1+5 [\u09aa\u0995\u09cd\u09b7\u09be\u09a8\u09cd\u09a4\u09b0 \u0995\u09b0\u09c7]
\u09ac\u09be, 6y=4
\u09ac\u09be, y=4\/6
\u09ac\u09be, y=2\/3
\u2234\u09a8\u09bf\u09b0\u09cd\u09a3\u09c7\u09af\u09bc \u09b8\u09ae\u09be\u09a7\u09be\u09a8\u0983 y=2\/3<\/p>\n\n\n\n

\u09eb. 17-2z=3z+2<\/strong><\/p>\n\n\n\n

\u09b8\u09ae\u09be\u09a7\u09be\u09a8:<\/p>\n\n\n\n

17-2z=3z+2
\u09ac\u09be, -2z-3z=2-17 [\u09aa\u0995\u09cd\u09b7\u09be\u09a8\u09cd\u09a4\u09b0 \u0995\u09b0\u09c7]
\u09ac\u09be, -5z=-15
\u09ac\u09be, 5z=15
\u09ac\u09be, z=15\/5
\u09ac\u09be, z=3
\u2234\u09a8\u09bf\u09b0\u09cd\u09a3\u09c7\u09af\u09bc \u09b8\u09ae\u09be\u09a7\u09be\u09a8\u0983 z=3<\/p>\n\n\n\n

\u09ec.  13z-5=3-2z<\/strong><\/p>\n\n\n\n

\u09b8\u09ae\u09be\u09a7\u09be\u09a8:<\/p>\n\n\n\n

13z-5=3-2z
\u09ac\u09be, 13z+2z=3+5 [\u09aa\u0995\u09cd\u09b7\u09be\u09a8\u09cd\u09a4\u09b0 \u0995\u09b0\u09c7]
\u09ac\u09be, 15z=8
\u09ac\u09be, z=8\/15
\u2234\u09a8\u09bf\u09b0\u09cd\u09a3\u09c7\u09af\u09bc \u09b8\u09ae\u09be\u09a7\u09be\u09a8\u0983 z=8\/15<\/p>\n\n\n\n

\u09ed. x<\/sup>\/4<\/sub> = 1<\/sup>\/3<\/sub><\/strong><\/p>\n\n\n\n

\u09b8\u09ae\u09be\u09a7\u09be\u09a8:<\/p>\n\n\n\n

x\/4=1\/3
\u09ac\u09be, 3x=4  [\u0986\u09a1\u09bc\u09cd\u0997\u09c1\u09a3\u09a8 \u0995\u09b0\u09c7}
\u09ac\u09be, x=4\/3
\u2234\u09a8\u09bf\u09b0\u09cd\u09a3\u09c7\u09af\u09bc \u09b8\u09ae\u09be\u09a7\u09be\u09a8\u0983 x=4\/3<\/p>\n\n\n\n

\u09ee. x\/2+1=3<\/strong><\/p>\n\n\n\n

\u09b8\u09ae\u09be\u09a7\u09be\u09a8:<\/p>\n\n\n\n

x\/2+1=3
\u09ac\u09be, x\/2=3-1 [\u09aa\u0995\u09cd\u09b7\u09be\u09a8\u09cd\u09a4\u09b0 \u0995\u09b0\u09c7]
\u09ac\u09be, x\/2=2
\u09ac\u09be, x=2\u27152 [\u0986\u09a1\u09bc\u09cd\u0997\u09c1\u09a3\u09a8 \u0995\u09b0\u09c7}
\u09ac\u09be, x=4
\u2234\u09a8\u09bf\u09b0\u09cd\u09a3\u09c7\u09af\u09bc \u09b8\u09ae\u09be\u09a7\u09be\u09a8\u0983 x=4<\/p>\n\n\n\n

\n\n\n\n
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\u09ef.<\/span><\/b><\/div>\n<\/td>
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x<\/span><\/u><\/b><\/div>\n
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5<\/span><\/b><\/div>\n<\/td>
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+ 7<\/span><\/b><\/div>\n<\/td><\/tr>
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\u09b8\u09ae\u09be\u09a7\u09be\u09a8\u0983<\/span><\/div>\n<\/td>
\n
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x<\/span><\/u><\/div>\n
3<\/span><\/div>\n<\/td>
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+<\/span><\/div>\n<\/td>
\n
5<\/span><\/div>\n<\/td>
\n
=<\/span><\/div>\n<\/td>
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x<\/span><\/u><\/div>\n
2<\/span><\/div>\n<\/td>
\n
+  7<\/span><\/div>\n<\/td><\/tr>
\n
\u09ac\u09be,<\/span><\/div>\n<\/td>
\n
x+15<\/span><\/u><\/div>\n
3<\/span><\/div>\n<\/td>
\n
+<\/span><\/div>\n<\/td>
\n
x+14<\/span><\/u><\/div>\n
2<\/span><\/div>\n<\/td><\/tr>
\n
\u09ac\u09be,<\/span><\/div>\n<\/td>
3\u2715(x+14)=2\u2715(x+15<\/span>) <\/span><\/div><\/td><\/tr>
\n
\u09ac\u09be,<\/span><\/div>\n<\/td>
\n
3x-2x=30-42<\/span><\/div>\n<\/td><\/tr>
\n
\u09ac\u09be,<\/span><\/div>\n<\/td>
\n
x=-12<\/span><\/div>\n<\/td><\/tr>
\n
\u2234<\/span>\u09a8\u09bf\u09b0\u09cd\u09a3\u09c7\u09df
\u09b8\u09ae\u09be\u09a7\u09be\u09a8\u0983 x=-12<\/span><\/div>\n<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
\n\n\n\n
\n
\u09e7\u09e6<\/span><\/b><\/div>\n<\/td>
\n
y<\/span><\/u><\/b><\/div>\n
2<\/span><\/b><\/div>\n<\/td>
\n
–<\/span><\/b><\/div>\n<\/td>
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y<\/span><\/u><\/b><\/div>\n
3<\/span><\/b><\/div>\n<\/td>
\n
=<\/span><\/b><\/div>\n<\/td>
\n
y<\/span><\/u><\/b><\/div>\n
5<\/span><\/b><\/div>\n<\/td>
\n
–<\/span><\/b><\/div>\n<\/td>
\n
1<\/span><\/u><\/b><\/div>\n
6<\/span><\/b><\/div>\n<\/td><\/tr>
\n
\u09b8\u09ae\u09be\u09a7\u09be\u09a8\u0983<\/span><\/div>\n<\/td>
\n
 <\/div>\n<\/td>
 <\/td> <\/td> <\/td> <\/td><\/tr>
\n
 <\/span><\/div>\n<\/td>
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y<\/span><\/u><\/div>\n
2<\/span><\/div>\n<\/td>
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y<\/span><\/u><\/div>\n
3<\/span><\/div>\n<\/td>
\n
=<\/span><\/div>\n<\/td>
\n
y<\/span><\/u><\/div>\n
5<\/span><\/div>\n<\/td>
\n
–<\/span><\/div>\n<\/td>
\n
1<\/span><\/u><\/div>\n
6<\/span><\/div>\n<\/td><\/tr>
\n
\u09ac\u09be,<\/span><\/div>\n<\/td>
\n
3y-2y<\/span><\/u><\/div>\n
6<\/span><\/div>\n<\/td>
\n
=<\/span><\/div>\n<\/td>
\n
6y-5<\/span><\/u><\/div>\n
30<\/span><\/div>\n<\/td>
\n
 <\/div>\n<\/td>
 <\/td> <\/td><\/tr>
\n
\u09ac\u09be,<\/span><\/div>\n<\/td>
\n
y<\/span><\/u><\/div>\n
6<\/span><\/div>\n<\/td>
\n
=<\/span><\/div>\n<\/td>
\n
6y-5<\/span><\/u><\/div>\n
30<\/span><\/div>\n<\/td>
\n
 <\/div>\n<\/td>
 <\/td> <\/td><\/tr>
\n
\u09ac\u09be,<\/span><\/div>\n<\/td>
\n
y\u271530=6\u2715(6y-5)<\/span><\/div>\n<\/td><\/tr>
\n
\u09ac\u09be,<\/span><\/div>\n<\/td>
\n
30y=36y-30<\/span><\/div>\n<\/td><\/tr>
\n
\u09ac\u09be,<\/span><\/div>\n<\/td>
\n
30y-36y=-30<\/span><\/div>\n<\/td><\/tr>
\n
\u09ac\u09be,<\/span><\/div>\n<\/td>
\n
-6y=-30<\/span><\/div>\n<\/td><\/tr>
\n
\u09ac\u09be,<\/span><\/div>\n<\/td>
\n
y<\/span><\/div>\n<\/td>
\n
=<\/span><\/div>\n<\/td>
\n
-30<\/span><\/u><\/div>\n
-6<\/span><\/div>\n<\/td>
\n
 <\/span><\/div>\n<\/td>
\n
 <\/div>\n<\/td>
 <\/td> <\/td><\/tr>
\n
\u09ac\u09be,<\/span><\/div>\n<\/td>
\n
y<\/span><\/div>\n<\/td>
\n
=<\/span><\/div>\n<\/td>
\n
5<\/span><\/div>\n<\/td>
\n
 <\/span><\/div>\n<\/td>
\n
 <\/div>\n<\/td>
 <\/td> <\/td><\/tr>
\n
\u2234<\/span>\u09a8\u09bf\u09b0\u09cd\u09a3\u09c7\u09df \u09b8\u09ae\u09be\u09a7\u09be\u09a8\u0983 y=5<\/span><\/div>\n<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
\n\n\n\n
\n
\u09e7\u09e7.<\/span><\/b><\/div>\n<\/td>
\n
y<\/span><\/u><\/b><\/div>\n
5<\/span><\/b><\/div>\n<\/td>
\n
–<\/span><\/b><\/div>\n<\/td>
\n
2<\/span><\/u><\/b><\/div>\n
7<\/span><\/b><\/div>\n<\/td>
\n
=<\/span><\/b><\/div>\n<\/td>
\n
5y<\/span><\/u><\/b><\/div>\n
7<\/span><\/b><\/div>\n<\/td>
\n
–<\/span><\/b><\/div>\n<\/td>
\n
4<\/span><\/u><\/b><\/div>\n
5<\/span><\/b><\/div>\n<\/td><\/tr>
\n
\u09b8\u09ae\u09be\u09a7\u09be\u09a8\u0983<\/span><\/div>\n<\/td>
\n
 <\/span><\/div>\n<\/td>
\n
 <\/span><\/div>\n<\/td>
\n
 <\/span><\/div>\n<\/td>
\n
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y<\/span><\/u><\/div>\n
5<\/span><\/div>\n<\/td>
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–<\/span><\/div>\n<\/td>
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2<\/span><\/u><\/div>\n
7<\/span><\/div>\n<\/td>
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=<\/span><\/div>\n<\/td>
\n
5y<\/span><\/u><\/div>\n
7<\/span><\/div>\n<\/td>
\n
–<\/span><\/div>\n<\/td>
\n
4<\/span><\/u><\/div>\n
5<\/span><\/div>\n<\/td><\/tr>
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\u09ac\u09be,<\/span><\/div>\n<\/td>
\n
y<\/span><\/u><\/div>\n
5<\/span><\/div>\n<\/td>
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+<\/span><\/div>\n<\/td>
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4<\/span><\/u><\/div>\n
5<\/span><\/div>\n<\/td>
\n
=<\/span><\/div>\n<\/td>
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5y<\/span><\/u><\/div>\n
7<\/span><\/div>\n<\/td>
\n
+<\/span><\/div>\n<\/td>
\n
2<\/span><\/u><\/div>\n
7<\/span><\/div>\n<\/td><\/tr>
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\u09ac\u09be,<\/span><\/div>\n<\/td>
\n
y+4<\/span><\/u><\/div>\n
5<\/span><\/div>\n<\/td>
\n
=<\/span><\/div>\n<\/td>
\n
5y+2<\/span><\/u><\/div>\n
7<\/span><\/div>\n<\/td>
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 <\/span><\/div>\n<\/td>
\n
 <\/span><\/div>\n<\/td><\/tr>
\n
\u09ac\u09be,<\/span><\/div>\n<\/td>
\n
7\u2715(y+5)=5\u2715(5y+2)<\/span><\/div>\n<\/td>
\n
 <\/span><\/div>\n<\/td>
\n
 <\/span><\/div>\n<\/td><\/tr>
\n
\u09ac\u09be,<\/span><\/div>\n<\/td>
\n
7y+28=25y+10<\/span><\/div>\n<\/td>
\n
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\n
 <\/span><\/div>\n<\/td>
\n
 <\/span><\/div>\n<\/td><\/tr>
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7y-25y=10-28<\/span><\/div>\n<\/td>
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\n
 <\/span><\/div>\n<\/td>
\n
 <\/span><\/div>\n<\/td><\/tr>
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\u09ac\u09be,<\/span><\/div>\n<\/td>
\n
-185y=-18<\/span><\/div>\n<\/td>
\n
 <\/span><\/div>\n<\/td>
\n
 <\/span><\/div>\n<\/td>
\n
 <\/span><\/div>\n<\/td><\/tr>
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\u09ac\u09be,<\/span><\/div>\n<\/td>
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y<\/span><\/div>\n<\/td>
\n
=<\/span><\/div>\n<\/td>
\n
-18<\/span><\/u><\/div>\n
-18<\/span><\/div>\n<\/td>
\n
 <\/span><\/div>\n<\/td>
\n
 <\/span><\/div>\n<\/td>
\n
 <\/span><\/div>\n<\/td>
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\u09ac\u09be,<\/span><\/div>\n<\/td>
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y<\/span><\/div>\n<\/td>
\n
=<\/span><\/div>\n<\/td>
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1<\/span><\/div>\n<\/td>
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\u2234<\/span>\u09a8\u09bf\u09b0\u09cd\u09a3\u09c7\u09df \u09b8\u09ae\u09be\u09a7\u09be\u09a8\u0983 y=1<\/span><\/div>\n<\/td>
\n

 <\/span><\/p>\n<\/td>

\n

 <\/span><\/p>\n<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\u09e7\u09e8. (2z-1<\/sup>)\/3<\/sub>=5<\/strong><\/p>\n\n\n\n

\u09b8\u09ae\u09be\u09a7\u09be\u09a8:<\/p>\n\n\n\n

(2z-1)\/3=5
\u09ac\u09be, 2z-1=5\u27153
\u09ac\u09be, 2z-1=15
\u09ac\u09be, 2z=15+1
\u09ac\u09be, 2z=16
\u09ac\u09be, z=16\/2
\u09ac\u09be, z=8<\/p>\n\n\n\n

\n\n\n\n
\n
\u09e7\u09e9.<\/span><\/b><\/div>\n<\/td>
\n
5x<\/span><\/u><\/b><\/div>\n
7<\/span><\/b><\/div>\n<\/td>
\n
+<\/span><\/b><\/div>\n<\/td>
\n
4<\/span><\/u><\/b><\/div>\n
5<\/span><\/b><\/div>\n<\/td>
\n
=<\/span><\/b><\/div>\n<\/td>
\n
x<\/span><\/u><\/b><\/div>\n
5<\/span><\/b><\/div>\n<\/td>
\n
+<\/span><\/b><\/div>\n<\/td>
\n
2<\/span><\/u><\/b><\/div>\n
7<\/span><\/b><\/div>\n<\/td><\/tr>
\n
\u09b8\u09ae\u09be\u09a7\u09be\u09a8\u0983<\/span><\/div>\n<\/td>
\n
 <\/span><\/div>\n<\/td>
\n
 <\/span><\/div>\n<\/td>
\n
 <\/span><\/div>\n<\/td>
\n
 <\/span><\/div>\n<\/td>
\n
 <\/span><\/div>\n<\/td><\/tr>
\n
 <\/span><\/div>\n<\/td>
\n
5x<\/span><\/u><\/div>\n
7<\/span><\/div>\n<\/td>
\n
+<\/span><\/div>\n<\/td>
\n
4<\/span><\/u><\/div>\n
5<\/span><\/div>\n<\/td>
\n
=<\/span><\/div>\n<\/td>
\n
x<\/span><\/u><\/div>\n
5<\/span><\/div>\n<\/td>
\n
+<\/span><\/div>\n<\/td>
\n
2<\/span><\/u><\/div>\n
7<\/span><\/div>\n<\/td><\/tr>
\n
\u09ac\u09be,<\/span><\/div>\n<\/td>
\n
5x<\/u>\u2715<\/u>5+4<\/u>\u2715<\/u>7<\/u><\/span><\/div>\n
35<\/span><\/div>\n<\/td>
\n
=<\/span><\/div>\n<\/td>
\n
7<\/u>\u2715<\/u>x+5<\/u>\u2715<\/u>2<\/u><\/span><\/div>\n
35<\/span><\/div>\n<\/td><\/tr>
\n
\u09ac\u09be,<\/span><\/div>\n<\/td>
\n
25x+28<\/span><\/div>\n<\/td>
\n
=<\/span><\/div>\n<\/td>
\n
7x+10<\/span><\/div>\n<\/td><\/tr>
\n
\u09ac\u09be,<\/span><\/div>\n<\/td>
\n
25x-7x<\/span><\/div>\n<\/td>
\n
=<\/span><\/div>\n<\/td>
\n
10-28<\/span><\/div>\n<\/td><\/tr>
\n
\u09ac\u09be,<\/span><\/div>\n<\/td>
\n
18x<\/span><\/div>\n<\/td>
\n
=<\/span><\/div>\n<\/td>
\n
-18<\/span><\/div>\n<\/td>
\n
 <\/span><\/div>\n<\/td>
\n
 <\/span><\/div>\n<\/td>
\n
 <\/span><\/div>\n<\/td>
\n
 <\/span><\/div>\n<\/td><\/tr>
\n
\u09ac\u09be,<\/span><\/div>\n<\/td>
\n
x<\/span><\/div>\n<\/td>
\n
=<\/span><\/div>\n<\/td>
\n
-18<\/span><\/u><\/div>\n
18<\/span><\/div>\n<\/td>
\n
 <\/span><\/div>\n<\/td>
\n
 <\/span><\/div>\n<\/td>
\n
 <\/span><\/div>\n<\/td>
\n
 <\/span><\/div>\n<\/td><\/tr>
\n
\u09ac\u09be,<\/span><\/div>\n<\/td>
\n
x<\/span><\/div>\n<\/td>
\n
=<\/span><\/div>\n<\/td>
\n
-1<\/span><\/div>\n<\/td>
\n
 <\/span><\/div>\n<\/td>
\n
 <\/span><\/div>\n<\/td>
\n
 <\/span><\/div>\n<\/td>
\n
 <\/span><\/div>\n<\/td><\/tr>
\n
\u2234<\/span>\u09a8\u09bf\u09b0\u09cd\u09a3\u09c7\u09df \u09b8\u09ae\u09be\u09a7\u09be\u09a8\u0983 x=-1<\/span><\/div>\n<\/td>
\n

 <\/span><\/p>\n<\/td>

\n

 <\/span><\/p>\n<\/td>

\n

 <\/span><\/p>\n<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\n\n\n\n
\n
\u09e7\u09ea.<\/span><\/b><\/div>\n<\/td>
\n
y-2<\/span><\/u><\/b><\/div>\n
4<\/span><\/b><\/div>\n<\/td>
\n
+<\/span><\/b><\/div>\n<\/td>
\n
2y-1<\/span><\/u><\/b><\/div>\n
3<\/span><\/b><\/div>\n<\/td>
\n
=<\/span><\/b><\/div>\n<\/td>
\n
y<\/span><\/b><\/div>\n<\/td>
\n
–<\/span><\/b><\/div>\n<\/td>
\n
1<\/span><\/u><\/b><\/div>\n
3<\/span><\/b><\/div>\n<\/td><\/tr>
\n
\u09b8\u09ae\u09be\u09a7\u09be\u09a8\u0983<\/span><\/div>\n<\/td>
\n
 <\/span><\/div>\n<\/td>
\n
 <\/span><\/div>\n<\/td>
\n
 <\/span><\/div>\n<\/td>
\n
 <\/span><\/div>\n<\/td>
\n
 <\/span><\/div>\n<\/td>
\n
 <\/span><\/div>\n<\/td>
\n
 <\/span><\/div>\n<\/td><\/tr>
\n
 <\/span><\/div>\n<\/td>
\n
y-2
<\/span><\/u>4<\/span><\/div>\n<\/td>
\n
+<\/span><\/div>\n<\/td>
\n
2y-1
<\/span><\/u>3<\/span><\/div>\n<\/td>
\n
=<\/span><\/div>\n<\/td>
\n
y<\/span><\/div>\n<\/td>
\n
–<\/span><\/div>\n<\/td>
\n
1<\/span><\/u><\/div>\n
3<\/span><\/div>\n<\/td><\/tr>
\n
\u09ac\u09be,<\/span><\/div>\n<\/td>
\n
3(y-2)+4(2y-1)
<\/span><\/u>12<\/span><\/div>\n<\/td>
\n
=<\/span><\/div>\n<\/td>
\n
3<\/u>\u2715<\/u>y-1<\/u>\u2715<\/u>1<\/u><\/span><\/div>\n
3<\/span><\/div>\n<\/td><\/tr>
\n
\u09ac\u09be,<\/span><\/div>\n<\/td>
\n
3y-6+8y-4<\/span><\/u><\/div>\n
12<\/span><\/div>\n<\/td>
\n
=<\/span><\/div>\n<\/td>
\n
3y-1<\/span><\/u><\/div>\n
3<\/span><\/div>\n<\/td><\/tr>
\n
\u09ac\u09be,<\/span><\/div>\n<\/td>
\n
11y-10<\/span><\/u><\/div>\n
12<\/span><\/div>\n<\/td>
\n
=<\/span><\/div>\n<\/td>
\n
3y-1<\/span><\/u><\/div>\n
3<\/span><\/div>\n<\/td><\/tr>
\n
\u09ac\u09be,<\/span><\/div>\n<\/td>
\n
3\u2715(11y-10)=12\u2715(3y-1)<\/span><\/div>\n<\/td><\/tr>
\n
\u09ac\u09be,<\/span><\/div>\n<\/td>
\n
33y-30=36y-12<\/span><\/div>\n<\/td><\/tr>
\n
\u09ac\u09be,<\/span><\/div>\n<\/td>
\n
33y-36y=-12+30<\/span><\/div>\n<\/td><\/tr>
\n
\u09ac\u09be,<\/span><\/div>\n<\/td>
\n
-3y=18<\/span><\/div>\n<\/td><\/tr>
\n
\u09ac\u09be,<\/span><\/div>\n<\/td>
\n
y=18\/-3<\/span><\/div>\n<\/td><\/tr>
\n
\u09ac\u09be,<\/span><\/div>\n<\/td>
\n
y=-6<\/span><\/div>\n<\/td><\/tr>
\n
\u2234<\/span>\u09a8\u09bf\u09b0\u09cd\u09a3\u09c7\u09df \u09b8\u09ae\u09be\u09a7\u09be\u09a8\u0983 y=-6<\/span><\/div>\n<\/td>
\n

 <\/span><\/p>\n<\/td>

\n

 <\/span><\/p>\n<\/td>

\n

 <\/span><\/p>\n

 <\/div>\n<\/td>
\n

 <\/span><\/p>\n<\/td><\/tr>

 <\/td> <\/td> <\/td> <\/td> <\/td> <\/td> <\/td> <\/td> <\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
\n\n\n\n
\n
\u09e7\u09eb.<\/span><\/b><\/div>\n<\/td>
\n
3y+1<\/span><\/u><\/b><\/div>\n
   5<\/span><\/b><\/div>\n<\/td>
\n
=<\/span><\/b><\/div>\n<\/td>
\n
3y-7<\/span><\/u><\/b><\/div>\n
  3<\/span><\/b><\/div>\n<\/td><\/tr>
\n
\u09b8\u09ae\u09be\u09a7\u09be\u09a8\u0983<\/span><\/div>\n<\/td>
\n
 <\/div>\n<\/td><\/tr>
\n
 <\/span><\/div>\n<\/td>
\n
3y+1<\/span><\/u><\/div>\n
   5<\/span><\/div>\n<\/td>
\n
=<\/span><\/div>\n<\/td>
\n
3y-7<\/span><\/u><\/div>\n
  3<\/span><\/div>\n<\/td><\/tr>
\n
\u09ac\u09be,<\/span><\/div>\n<\/td>
\n
5(3y-7)=3(3y+1)<\/span><\/div>\n<\/td><\/tr>
\n
\u09ac\u09be,<\/span><\/div>\n<\/td>
\n
15y-35=9y+3<\/span><\/div>\n<\/td><\/tr>
\n
\u09ac\u09be,<\/span><\/div>\n<\/td>
\n
15y-9y=3+35<\/span><\/div>\n<\/td><\/tr>
\n
\u09ac\u09be,<\/span><\/div>\n<\/td>
\n
6y=38<\/span><\/div>\n<\/td><\/tr>
\n
\u09ac\u09be,<\/span><\/div>\n<\/td>
\n
y=38\/6<\/span><\/div>\n<\/td><\/tr>
\n
\u09ac\u09be,<\/span><\/div>\n<\/td>
\n
y=19\/3<\/span><\/div>\n<\/td><\/tr>
\u2234<\/span>\u09a8\u09bf\u09b0\u09cd\u09a3\u09c7\u09df \u09b8\u09ae\u09be\u09a7\u09be\u09a8\u0983 y=19<\/sup>\/3<\/span><\/div> <\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
\n\n\n\n
\n
\u09e7\u09ec.<\/b><\/span><\/div>\n<\/td>
\n
x+1<\/b><\/span><\/u><\/div>\n
2<\/b><\/span><\/div>\n<\/td>
\n
–<\/b><\/span><\/div>\n<\/td>
\n
x-2<\/b><\/span><\/u><\/div>\n
3<\/b><\/span><\/div>\n<\/td>
\n
–<\/b><\/span><\/div>\n<\/td>
\n
x-3<\/b><\/span><\/u><\/div>\n
5<\/b><\/span><\/div>\n<\/td>
\n
=<\/b><\/span><\/div>\n<\/td>
\n
2<\/b><\/span><\/div>\n<\/td><\/tr>
\n
\u09b8\u09ae\u09be\u09a7\u09be\u09a8\u0983<\/span><\/div>\n<\/td>
\n
 <\/span><\/div>\n<\/td>
\n
 <\/span><\/div>\n<\/td>
\n
 <\/span><\/div>\n<\/td>
\n
 <\/span><\/div>\n<\/td>
\n
 <\/span><\/div>\n<\/td>
\n
 <\/span><\/div>\n<\/td><\/tr>
\n
 <\/span><\/div>\n<\/td>
\n
x+1<\/span><\/u><\/div>\n
2<\/span><\/div>\n<\/td>
\n
–<\/span><\/div>\n<\/td>
\n
x-2<\/span><\/u><\/div>\n
3<\/span><\/div>\n<\/td>
\n
–<\/span><\/div>\n<\/td>
\n
x-3<\/span><\/u><\/div>\n
5<\/span><\/div>\n<\/td>
\n
=<\/span><\/div>\n<\/td>
\n
2<\/span><\/div>\n<\/td><\/tr>
\n
\u09ac\u09be,<\/span><\/div>\n<\/td>
\n
15(x+1)-10(x-2)-6(x-3)<\/span><\/u><\/div>\n
30<\/span><\/div>\n<\/td>
\n
=<\/span><\/div>\n<\/td>
\n
2<\/span><\/div>\n<\/td>
\n
 <\/span><\/div>\n<\/td><\/tr>
\n
\u09ac\u09be,<\/span><\/div>\n<\/td>
\n
15x+15-10x+20-6x+18<\/span><\/div>\n<\/td>
\n
=<\/span><\/div>\n<\/td>
\n
2\u271530<\/span><\/div>\n<\/td><\/tr>
\n
\u09ac\u09be,<\/span><\/div>\n<\/td>
\n
-x+53=60<\/span><\/div>\n<\/td>
\n
 <\/span><\/div>\n<\/td>
\n
 <\/span><\/div>\n<\/td><\/tr>
\n
\u09ac\u09be,<\/span><\/div>\n<\/td>
\n
-x=60-53<\/span><\/div>\n<\/td>
\n
 <\/span><\/div>\n<\/td>
\n
 <\/span><\/div>\n<\/td>
\n
 <\/span><\/div>\n<\/td>
\n
 <\/span><\/div>\n<\/td><\/tr>
\n
\u09ac\u09be,<\/span><\/div>\n<\/td>
\n
-x=-7<\/span><\/div>\n<\/td>
\n
 <\/span><\/div>\n<\/td>
\n
 <\/span><\/div>\n<\/td>
\n
 <\/span><\/div>\n<\/td>
\n
 <\/span><\/div>\n<\/td><\/tr>
\n
\u09ac\u09be,<\/span><\/div>\n<\/td>
\n
x=-7<\/span><\/div>\n<\/td>
\n
 <\/span><\/div>\n<\/td>
\n
 <\/span><\/div>\n<\/td>
\n
 <\/span><\/div>\n<\/td>
\n
 <\/span><\/div>\n<\/td><\/tr>
\n
\u2234<\/span>\u09a8\u09bf\u09b0\u09cd\u09a3\u09c7\u09df \u09b8\u09ae\u09be\u09a7\u09be\u09a8\u0983 x=-7<\/span><\/div>\n<\/td>
\n

 <\/span><\/p>\n<\/td>

\n

 <\/span><\/p>\n<\/td>

\n

 <\/span><\/p>\n<\/td>

\n

 <\/span><\/p>\n<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\n\n\n\n

\u09e7\u09ed. 2(x+3)=10<\/strong><\/p>\n\n\n\n

\u09b8\u09ae\u09be\u09a7\u09be\u09a8\u0983<\/p>\n\n\n\n

2(x+3)=10
\u09ac\u09be, 2x+6=10
\u09ac\u09be, 2x=10-6
\u09ac\u09be, 2x=4
\u09ac\u09be, x=4\/2
\u09ac\u09be, x=2
\u2234\u09a8\u09bf\u09b0\u09cd\u09a3\u09c7\u09af\u09bc \u09b8\u09ae\u09be\u09a7\u09be\u09a8\u0983 x=2<\/p>\n\n\n\n

\u09e7\u09ee. 5(x-2)=3(x-4)<\/strong><\/p>\n\n\n\n

\u09b8\u09ae\u09be\u09a7\u09be\u09a8:<\/p>\n\n\n\n

5(x-2)=3(x-4)
\u09ac\u09be, 5x-10=3x-12
\u09ac\u09be, 5x-3x=-12+10
\u09ac\u09be, 2x=-2
\u09ac\u09be, x=-2\/2
\u09ac\u09be, x=-1
\u2234\u09a8\u09bf\u09b0\u09cd\u09a3\u09c7\u09af\u09bc \u09b8\u09ae\u09be\u09a7\u09be\u09a8\u0983 x=-1<\/p>\n\n\n\n

\u09e7\u09ef. 7(3-2y)+5(y-1)=34<\/strong><\/p>\n\n\n\n

\u09b8\u09ae\u09be\u09a7\u09be\u09a8\u0983<\/p>\n\n\n\n

7(3-2y)+5(y-1)=34
\u09ac\u09be, 21-14y+5y-5=34
\u09ac\u09be, -9y+16=34
\u09ac\u09be, -9y=34-16
\u09ac\u09be, -9y=18
\u09ac\u09be, y=-18\/9
\u09ac\u09be, y=-2
\u2234\u09a8\u09bf\u09b0\u09cd\u09a3\u09c7\u09af\u09bc \u09b8\u09ae\u09be\u09a7\u09be\u09a8\u0983 y=-2<\/p>\n\n\n\n

\u09e8\u09e6. (z-1)(z+2)=(z+4)(z-2)<\/strong><\/p>\n\n\n\n

\u09b8\u09ae\u09be\u09a7\u09be\u09a8\u0983<\/p>\n\n\n\n

(z-1)(z+2)=(z+4)(z-2)
\u09ac\u09be, z2<\/sup>-z+2z-2=z2<\/sup>+4z-2z-8
\u09ac\u09be, z2<\/sup>-z-2=z2<\/sup>+2z-8
\u09ac\u09be, z2<\/sup>+z-z2<\/sup>-2z=-8+2
\u09ac\u09be,-z=-6
\u09ac\u09be, z=6
\u2234\u09a8\u09bf\u09b0\u09cd\u09a3\u09c7\u09af\u09bc \u09b8\u09ae\u09be\u09a7\u09be\u09a8\u0983 z=6<\/p>\n\n\n\n

\n\n\n\n
tags: <\/em>Class 7 Math book solution BD pdf,Math lecture guide for class 7,class 7 math bd pdf,\u0997\u09a3\u09bf\u09a4 \u09b8\u09aa\u09cd\u09a4\u09ae \u09b6\u09cd\u09b0\u09c7\u09a3\u09bf \u0985\u09a8\u09c1\u09b6\u09c0\u09b2\u09a8\u09c0-\u09ed.\u09e7 \u09b8\u09ae\u09c0\u0995\u09b0\u09a3 \u09b8\u09ae\u09be\u09a7\u09be\u09a8\n<\/pre>\n","protected":false},"excerpt":{"rendered":"
\u09ed\u09ae \u0985\u09a7\u09cd\u09af\u09be\u09df\u0983 \u09b8\u09b0\u09b2 \u09b8\u09ae\u09c0\u0995\u09b0\u09a3 | \u09ed\u09ae \u09b6\u09cd\u09b0\u09c7\u09a3\u09bf \u0997\u09a3\u09bf\u09a4 \u09ac\u0987 \u09b8\u09ae\u09cd\u09aa\u09c2\u09b0\u09cd\u09a3 \u09b8\u09ae\u09be\u09a7\u09be\u09a8 | Class Seven (07) Math Book Solution | Chapter 07 : Simple Equation \u09ed\u09ae \u0985\u09a7\u09cd\u09af\u09be\u09df\u0983 \u09b8\u09b0\u09b2 \u09b8\u09ae\u09c0\u0995\u09b0\u09a3 | \u0985\u09a8\u09c1\u09b6\u09c0\u09b2\u09a8\u09c0 \u09ed.\u09e7: \u09b8\u09ae\u09c0\u0995\u09b0\u09a3 \u09b8\u09ae\u09be\u09a7\u09be\u09a8 \u09ed\u09ae \u0985\u09a7\u09cd\u09af\u09be\u09df\u0983 \u09b8\u09b0\u09b2 \u09b8\u09ae\u09c0\u0995\u09b0\u09a3 | \u0985\u09a8\u09c1\u09b6\u09c0\u09b2\u09a8\u09c0 \u09ed.\u09e7 \u098f\u09b0 \u09b8\u0995\u09b2 \u09aa\u09cd\u09b0\u09b6\u09cd\u09a8 \u0993 \u0989\u09a4\u09cd\u09a4\u09b0 \u098f\u0996\u09be\u09a8\u09c7 \u09b0\u09df\u09c7\u099b\u09c7\u0964 \u09ed\u09ae \u09b6\u09cd\u09b0\u09c7\u09a3\u09bf \u09b8\u09ae\u09cd\u09aa\u09c2\u09b0\u09cd\u09a3 \u0997\u09a3\u09bf\u09a4 \u09ac\u0987 \u09b8\u09ae\u09be\u09a7\u09be\u09a8 \u09ed\u09ae \u09b6\u09cd\u09b0\u09c7\u09a3\u09bf\u09b0 […]<\/p>\n","protected":false},"author":1,"featured_media":4333,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[33],"tags":[35,34],"class_list":["post-4583","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-class-seven-7","tag-class-7","tag-class-seven"],"yoast_head":"\n\u09ed\u09ae \u0985\u09a7\u09cd\u09af\u09be\u09df\u0983 \u09b8\u09b0\u09b2 \u09b8\u09ae\u09c0\u0995\u09b0\u09a3 | \u0985\u09a8\u09c1\u09b6\u09c0\u09b2\u09a8\u09c0 \u09ed.\u09e7 | \u09b8\u09aa\u09cd\u09a4\u09ae \u09b6\u09cd\u09b0\u09c7\u09a3\u09bf - Study Zone BD<\/title>\n<meta name=\"description\" content=\"\u09ed\u09ae \u09b6\u09cd\u09b0\u09c7\u09a3\u09bf \u0997\u09a3\u09bf\u09a4 \u09ac\u0987 \u09b8\u09ae\u09cd\u09aa\u09c2\u09b0\u09cd\u09a3 \u09b8\u09ae\u09be\u09a7\u09be\u09a8 | Class Seven (07) Math Book Solution. 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