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10 April, 16:12

A washer and a dryer cost $770 combined. The washer costs $70 more than the dryer. What is the cost of the dryer?

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  1. 10 April, 16:18
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    W + d = 770

    w = d + 70

    d + 70 + d = 770

    2d + 70 = 770

    2d = 770 - 70

    2d = 700

    d = 700/2

    d = 350 < = = = cost of dryer
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