SOLUTION: a man is 40 years old and his son is 8 years old. In how many years will the man be 3 times as old as his son will be then?

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Question 241776: a man is 40 years old and his son is 8 years old. In how many years will the man be 3 times as old as his son will be then?
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
40+x=3(8+x)
40+x=24+3x
x-3x=24-40
-2x=-16
x=-16/-2
x=8 years from now the dad will be 3 times as old as the son.
Proof:
40+8=3(8+8)
48=3*16
48=48