SOLUTION: Solve using the subtitution method. 5x + 3y= -1 x + y = 1

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Question 301617: Solve using the subtitution method. 5x + 3y= -1
x + y = 1
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
1.5x+%2B+3y=+-1
2.x+%2B+y+=+1
From eq. 2,
x=1-y
Substitute into eq. 1,
5%281-y%29%2B3y=-1
5-5y%2B3y=-1
-2y=-6
highlight_green%28+y=3%29
Now use either equation to solve for x.
x=1-y
x=1-3
highlight_green%28+x=-2%29