SOLUTION: ten years ago, a person was half as old as he is now. How old is he now?

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Question 170756: ten years ago, a person was half as old as he is now. How old is he now?
Answer by Mathtut(3670) About Me  (Show Source):
You can put this solution on YOUR website!
lets call the person p
:
p-10=1/2(p) multiply by 2
:
2p-20=p
:
highlight%28p=20%29current age