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algebraic expressions - equation

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< async src="//pagead2.googlesyndication.com/pagead/js/adsbygoogle.js"> 發問:

algebraic expressions - equation (Write down an equation connecting the unknown) 3.Rose's money is less than half of Mary's by $120.Rose has $39. Let $x be the amount that Mary has. And also,It is the best to explain the answers and the questions.

最佳解答:

Let $x be the amount that Mary has x/2 - 120 = 39 x/2 = 159 x = 318 Hence, Mary has $318

其他解答:8E3E6C6EF735F507