SOLUTION: Williams is half old as Martin but the sum of they age is 18 how old is the brothers

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Question 1110671: Williams is half old as Martin but the sum of they age is 18 how old is the brothers
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
6 and 12

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How to solve:
Assign a variable, preferably to Martin's age but you can assign one to William instead.

Martin, M
If William is HALF of Martin in age, then this is M/2.

Maybe easier to recognize that if William is some age w, then Martin is age 2w.

The sum of their ages was given as 18, so w%2B2w=18.
Solve for w, and you have William's age. Use this to get Martin's age.