SOLUTION: Jan is 3 years older than his brother Miguel. In 7 years, he will be six- sevenths of his age. How old are they now?

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Question 1055404: Jan is 3 years older than his brother Miguel. In 7 years, he will be six- sevenths of his age. How old are they now?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
J=3%2BM
In seven years,
M%2B7=%286%2F7%29%28J%2B7%29
Substituting,
M%2B7=%286%2F7%29%283%2BM%2B7%29
M%2B7=%286%2F7%29%28M%2B10%29
7%28M%2B7%29=6%28M%2B10%29
7M%2B49=6M%2B60
M=11
So then,
J=3%2B11
J=14