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10 August, 21:52

4. Find the value of x in the equation 9 - 4x = 57. A. 16.5 B. - 16.5 C. - 12 D. 12

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  1. 11 August, 00:48
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    C. - 12

    Step-by-step explanation:

    9 - 4x = 57

    Subtract 9 from each side

    9-9-4x = 57-9

    -4x = 48

    Divide by - 4 on each side

    -4x/-4 = 48/-4

    x = - 12
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