SOLUTION: Mary is 41 years old and her daughter is 9. In how many years will be the mother be three times as old as her daughter?

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Question 1120952: Mary is 41 years old and her daughter is 9. In how many years will be the mother be three times as old as her daughter?
Answer by solver91311(24713) About Me  (Show Source):
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41 + x = 3(9 + x)