SOLUTION: in 10 years, william will be twice as old as he was 7 years ago. what is williams age now?

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Question 384212: in 10 years, william will be twice as old as he was 7 years ago. what is williams age now?
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
let a = his present age
:
in 10 years, william will be twice as old as he was 7 years ago.
a + 10 = 2(a-7)
a + 10 = 2a - 14
10 + 14 = 2a - a
a = 24 is williams age now?