SOLUTION: Mary is 20year and Alice 40year use equation to find their common age.
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Question 766810: Mary is 20year and Alice 40year use equation to find their common age.
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Mary is 20year and Alice 40year use equation to find their common age.
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They don't have a common age.
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