SOLUTION:

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Question 443159:
Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!

5x%2B3y=-1........1
x%2By=1..........2
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x%2By=1.........solve for y
y=1-x..........plug in 1
5x%2B3%281-x%29=-1........1
5x%2B3-3x=-1
2x=-1-3
2x=-4
highlight%28x=-2%29.......now find y
y=1-x
y=1-%28-2%29
y=1%2B2
highlight%28y=3%29