Question:

This is the last question yahooians solve 8|w-7|=72?

by Guest64358  |  earlier

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This is evaluating expressions but subtracting

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  1. 8|w-7|=72

    |w-7|=72/8=9

    we get 2 equations:

    1) w - 7 = 9

    2) w - 7 = -9

    1) w = 9+7= 16

    2) w = -9+7= -2


  2. divide by 8 both sides

    |w-7|= 9

    so w-7=9 or -(w-7) = 9

    w= 16 or -w+7=9

    w=16 or w = -2

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