class 9 solution !!!
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Answer:
Step-by-step explanation:
(a) 2x-7 = 2(3x+7)
2x-7 = 6x+14
-7-14 = 6x-2x
-21= 4x
x = -21/4
(b) x+4 = 3(x-2)
x+4 = 3x-6
4+6 = 3x-x
10 = 2x
x = 5
(c) x/2 - 5/3 = x/3 - 2/5
x/2 - x/3 = 5/3 - 2/5
x/6 = 19/15 (L.C.M)
x = 38/5
(d) 2x/7 +5/2 = x -2/3
x-2x/7 = 2/3+5/2
5x/7 = 19/2
x = 133/10
(e) 3x/2 - 5/3 = 3(x-2)
6-5/3 = 3x-3x/2
13/3 = 3x/2
x = 26/9
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