Math, asked by smackdowner, 1 year ago

class 9 solution !!!

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Answered by ankit8947
2

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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