SOLUTION: raul has a younger sister who is four years younger the sum combined age is 28

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Question 899554: raul has a younger sister who is four years younger the sum combined age is 28
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
l has a younger sister who is four years younger
r = s + 4
r - s = 4
the sum combined age is 28.
r + s = 28
use elimination on these two equations
r - s = 4
r + s = 28
---------------adding eliminates s, find r
2r = 32
r = 16 is R's age
I'll let you find the sister's age. Confirm that they add up to 28