SOLUTION: Andrew is three years older than Mary. if the sum of their ages total 27. How old is Mary

SOLUTION: Andrew is three years older than Mary. if the sum of their ages total 27. How old is Mary

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Question 1084850: Andrew is three years older than Mary. if the sum of their ages total 27. How old is Mary
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!

and

Substituting,

Solve for M then use either equation to solve for A.
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