SOLUTION: A boy is 10 years older than his brother. In 4 years he will be twice as old as his brother. Find the present age of each.

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Question 1099222: A boy is 10 years older than his brother. In 4 years he will be twice as old as his brother. Find the present age of each.
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
r+10, the boy
r, the brother

%28r%2B10%29%2B4=2%28r%2B4%29
-
r%2B10%2B4=2r%2B8
14-8=r
highlight%28r=6%29------------the brother is 6 years old.