SOLUTION: Aaron is twice as old as Robert. Seven years ago the sum of their ages was 16. How old are Aaron and Robert now?

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Question 348744: Aaron is twice as old as Robert. Seven years ago the sum of their ages was 16. How old are Aaron and Robert now?
Answer by JBarnum(2146) About Me  (Show Source):
You can put this solution on YOUR website!
i love age problems
A=Aaron
R=Robert
A=2R
%28A-7%29%2B%28R-7%29=16
%28%282R%29-7%29%2B%28R-7%29=16
3R-14=16
3R=30
highlight%28R=10%29
A=2R
A=2%2810%29
highlight%28A=20%29