SOLUTION: Cody is twice as old as Evan and eight years ago the sum of their age was 8. What is the age of each boy now?

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Question 874335: Cody is twice as old as Evan and eight years ago the sum of their age was 8. What is the age of each boy now?
Answer by ben720(159) About Me  (Show Source):
You can put this solution on YOUR website!
Let e = evan
Let Cody=2e
Eight years ago, e+c=8
%28e-8%29%2B%282e-8%29=8
Associative and commutative and definition of subtraction
e%2B2e-8-8=8
Add 16 to both sides
e%2B2e=24
3e=24
e=8
Evan is 8 and Cody is 16.