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23 April, 17:58

A washer and a dryer cost $699 combined. The washer costs $151 less than the dryer. What is the cost of the dryer?

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  1. 23 April, 18:17
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    w=washer

    d = dryer

    w = d-151

    w+d=699

    substitute d-151 for the washer

    d-151+d = 699

    combine like terms

    2d-151 = 699

    add 151 to each side

    2d = 850

    divide by 2

    d = 450
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