SOLUTION: You are nine years old your father is 47years how old will your dad be when you are 21years

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Question 1038461: You are nine years old your father is 47years how old will your dad be when you are 21years
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
The difference in your ages never changes
so it will always be +47+-+9+=+38+
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When I am +21+, dad is +21+%2B+38+=+59+