SOLUTION: Twenty years ago Horace was one fifth as old as he is now. How old is he now?

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Question 159900: Twenty years ago Horace was one fifth as old as he is now. How old is he now?
Answer by vleith(2983) About Me  (Show Source):
You can put this solution on YOUR website!
Let A be his age now
You are told at A-20+=+A%2F5
5A+-+100+=+A
4A+=+100
A+=+25