SOLUTION: Alvin is 7 years older than Elga. The sum of their ages is 69 . What is Elga's age?

Algebra ->  Linear-equations -> SOLUTION: Alvin is 7 years older than Elga. The sum of their ages is 69 . What is Elga's age?      Log On


   

Question 1081851: Alvin is 7 years older than Elga. The sum of their ages is 69 . What is Elga's age?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
A=E%2B7
and
A%2BE%2B69
Substituting,
%28E%2B7%29%2BE=69
2E%2B7=69
2E=62
Now solve for E, then use either equation to solve for A.