SOLUTION: How do you solve this equation using the elimination method? a+7b=7 a+2b=-3

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Question 695037: How do you solve this equation using the elimination method?
a+7b=7
a+2b=-3
Answer by Ave(106) About Me  (Show Source):
You can put this solution on YOUR website!
a+7b=7
a+2b=-3 subtract
5b=10 divide by 5
b=2
now plug in 2 for b in either equation and solve for a
a+2(2)=-3
a+4=-3
a=-7
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a=-7, b=2