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22 September, 23:02

Marcia has $84 less than three times as much as sue. together they have $132. how much money does marcia have?

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  1. 22 September, 23:29
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    Let x = sue

    and then let 3x-84 = marcia

    therefore

    (x) + (3x-84) = 132

    4x-84=132

    4x=216

    x=54

    however just solving for x doesnt completely solve. it only shows sues money because x = sue

    for marcia

    3x-84

    3 (54) - 84

    162-84

    78

    therefore Marcia has 78$.
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