SOLUTION: solve for x and y. 3x-y=-15 4x+5y=-1

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Question 383053: solve for x and y.
3x-y=-15
4x+5y=-1
Answer by Fombitz(13828) About Me  (Show Source):
You can put this solution on YOUR website!
1.3x-y=-15
2.4x%2B5y=-1
Multiply eq. 1 by 5 and add to eq. 2,
15x-5y%2B4x%2B5y=-75-1
19x=-76
highlight%28x=-4%29
Then use either equation to solve for y.
3%28-4%29-y=-15
-12-y=-15
highlight%28y=3%29