SOLUTION: The total age of the ages of Mary,Sandra and Vicky is 90years.What was the total of their ages 3years ago?

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Question 1125759: The total age of the ages of Mary,Sandra and Vicky is 90years.What was the total of their ages 3years ago?
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
m%2Bs%2Bv=90

Three years ago
m%2Bs%2Bv-3-3-3=90-3-3-3
m%2Bs%2Bv-9=90-9
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