SOLUTION: If 5a-b=9 and 3a+b=15, then a=b=?

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Question 322947: If 5a-b=9 and 3a+b=15, then a=b=?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Add the two equations together to eliminate b.
5a-b%2B3a%2Bb=9%2B15
8a=24
highlight%28a=3%29
Then use either equation to solve for y.
9%2Bb=15
highlight%28b=6%29