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Susy had 2/3 as much money as Mary at first. After receiving 1/2 of Mary's money, Susy had $210. How much money did Susy have at first?

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Answer:

$120

Step-by-step explanation:

2/3 of Mary's money + 1/2 of Mary's money is equal to 7/6 of Mary's money

7/6 of Mary's money = $210

Mary's money = m

210 = 7/6*x

180 = x

Mary's money = $180

Suzy's original money = 2/3 of 180

2/3 * 180 = 120

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