SOLUTION: In 2 years, David will be twice as old as he was 5 years ago. How old is he now?

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Question 334275: In 2 years, David will be twice as old as he was 5 years ago. How old is he now?
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
x+2=2(x-5)
x+2=2x-10
x-2x=-10-2
-x=-12
x=12 ans.
Proof:
12+2=2(12-5)
14=2*7
14=14