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8 November, 05:41

6w + 10w - 7y = 5 x = 3 and y=7

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  1. 8 November, 08:24
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    Add common factors

    10w - 7y = 5

    plug in y

    10w - 7 (7) = 5

    10w - 49 = 5

    add 49 to both sides

    10w = 54

    divide both sides by 10

    w = 5.4
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