SOLUTION: In 15 years, A would be twice as old as he was 10 years ago. How old is he now?

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Question 1013746: In 15 years, A would be twice as old as he was 10 years ago. How old is he now?
Answer by ikleyn(52797) About Me  (Show Source):
You can put this solution on YOUR website!
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In 15 years, A would be twice as old as he was 10 years ago. How old is he now?
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x + 15 = 2(x-10)

is your equation.

Solve it:

x + 15 = 2x - 20,

x = 15 + 20 = 30.

Answer. 35 years.