SOLUTION: A father is 30 years older than his son, in 17 years' time he will be double the son's age. What is the son's age?

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Question 472251: A father is 30 years older than his son, in 17 years' time he will be double the son's age. What is the son's age?
Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
son =x
father = x+30
17 years later
son = x+17
father = (x+30)+17
(x+30) +17 = 2(x+17)
x+47=2x+34
2x-x=47-34
x=13 son's age