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17 April, 15:23

Solve for x 12x/5 a. x=-71/2 b. x=71/2 c. x = 43 1/5

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  1. 17 April, 17:20
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    x = - 12 6/7

    Step-by-step explanation:

    x - 12x/5 = 18

    Get a common denominator on the left

    5/5 x - 12/5x = 18

    Subtract

    -7/5 x = 18

    Multiply each side by - 5/7 to isolate x

    -5/7 * -7/5 x = - 5/7 * 18

    x = - 5*18/7

    x = - 90/7

    Changing this to a mixed number

    7 goes into 90 1 2 times with 6 left over

    x = - 12 6/7
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