SOLUTION:

Question 1204011:
Found 2 solutions by josgarithmetic, ikleyn:
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
"Brains age is half that of his brothers. When you add Brian's age to his brothers age,..."

No not like that!

You REALLY mean something that is like:
Brian's age n
His BROTHER's age 2n
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Are you sure that you gave the right description?
Does Brian have more than just one brother?
Answer by ikleyn(52781) (Show Source): You can put this solution on YOUR website!