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20 February, 01:28

What is 4 (3z-2) = 9z-7

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  1. 20 February, 01:32
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    4*3z-4*2 = 9z-7

    12z-8 = 9z-7

    12z-9z = - 7+8

    3z = 1

    z = 1/3
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