SOLUTION: Martin is 2 times as old as Jesse. The sum of their ages is 18. How old are Martin and Jesse. How to solve the problem?

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Question 895915: Martin is 2 times as old as Jesse. The sum of their ages is 18. How old are Martin and Jesse. How to solve the problem?
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
m=2j and m+j=18