SOLUTION: Solve each system by addition. x – 2y = -1 -x + 5y = 4

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Question 317533: Solve each system by addition.
x – 2y = -1
-x + 5y = 4
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
1.x+-2y+=+-1
2.-x+%2B+5y+=+4
Add the equations,
x-2y-x%2B5y=-1%2B4
3y=3
highlight%28y=1%29
Then use either equation,
-x%2B5=4
-x=-1
highlight%28x=1%29