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22 April, 04:49

Eight times the difference of a number and seventeen is thirty"?

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  1. 22 April, 06:54
    0
    Let the number be y;

    8 * (17-y) = 30

    8*17-8y=30

    136-8y=30

    -8y=30-136

    -8y=-106

    y=-106/=8

    y=53/4
  2. 22 April, 06:55
    0
    Difference of a number and 17: x - 17

    eight times that = 8 (x - 17)

    8 (x - 17) = 30

    divide both sides by 8

    x - 17 = 30/8

    x = 30/8 + 17 which is 20.75
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