SOLUTION: 2x+5y=3 -x+3y=-7

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Question 267578: 2x+5y=3
-x+3y=-7
Answer by checkley77(12844) About Me  (Show Source):
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2x+5y=3
-x+3y=-7 multiply by 2 & add
-2x+6y=-14
2x+5y=3
-------------------
11y=-11
y=-11/11
y=-1 ans.
2x+5*-1=3
2x-5=3
2x=3+5
2x=8
x=8/2
x=4 ans.
Proof:
-4+3*-1=-7
-4-3=-7
-7=-7