SOLUTION: In12 years a man will be twice as old as he was 12 years ago. Find his present age.

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Question 708795: In12 years a man will be twice as old as he was 12 years ago. Find his present age.
Answer by Stitch(470) About Me  (Show Source):
You can put this solution on YOUR website!
Let A = the present age of the man.
2%2A%28A+-+12%29+=+A+%2B+12
Multiply the 2 through
2A+-+24+=+A+%2B+12
Add 24 to both sides
2A+=+A+%2B+36
Subtract A from both sides
highlight%28A+=+36%29
The man is currently 36.
12 years ago he was 24.
In 12 years he will be 48.
24 x 2 = 48