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

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Question 1027245: in 12 years a man will be twice as old as he was 12 years ago.find his present age.




Answer by purpleoj(8) About Me  (Show Source):
You can put this solution on YOUR website!
So, first you use "n" as the man's present age, then write out your equation.
+%28N%2B12%29=2%28N-12%29+
Then, multiply out the 2,
+N%2B12=2N-24+
Then, isolate N.
+N=12--24+
And you have your answer!
+N=36+
The man is 36 years old.