SOLUTION: Shawn is 4/5ths as old now as he will be in seven years. How old is he now?

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Question 807758: Shawn is 4/5ths as old now as he will be in seven years. How old is he now?
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
s=4/5(s+7)
s = 28