SOLUTION: A man is 42 years old and his son is 12. In how many years will the father be twice as old as his son.
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Question 649317: A man is 42 years old and his son is 12. In how many years will the father be twice as old as his son.
Answer by unlockmath(1688) (Show Source): You can put this solution on YOUR website!
Hello,
We can set up an equation where x represents the years.
42+x=(12+x)2
Expand:
42+x=24+2x
Subtract x and 24:
x=18 years
Make sense?
RJ
www.math-unlock.com
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