Marcia has $84 less than three times as much as sue. together they have $132. how much money does marcia have?
1 answer:
Let x = sue and then let 3x-84 = marcia therefore (x)+(3x-84)=132 4x-84=132 4x=216 x=54 however just solving for x doesnt completely solve. it only shows sues money because x = sue for marcia 3x-84 3(54)-84 162-84 78 therefore Marcia has 78$.
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