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18 September, 09:15

Solve the following sums:

a) 4 (a+1) = 2 b) 3-9x=-6-8x c) 3 (4x-1) = 7 (2x-5)

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  1. 18 September, 10:28
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    Step-by-step explanation:

    A. 4 (a + 1) = 2

    = 4a + 4 = 2

    = 4a = 2-4 = - 2

    = a = - 2 / 4 = - 1/2

    B. 3 - 9x = - 6-8x

    3 + 6 = - 8x + 9x

    9 = x

    C. 12x - 3 = 14x - 35

    - 3 + 35 = 14x - 12x

    32 = 2x

    32 / 2 = x

    16 = x
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