SOLUTION: Solve each system of equations. Check the solutions. 2x-y=4 x+2y=7

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Question 189507: Solve each system of equations. Check the solutions.
2x-y=4
x+2y=7
Answer by checkley75(3666) About Me  (Show Source):
You can put this solution on YOUR website!
2x-y=4
x+2y=7 or x=7-2y
2(7-2y)-y=4
14-4y-y=4
-5y=4-14
-5y=-10
y=-10/-5
y=2 ans.
2x+2=4
2x=4+2
2x=6
x=6/2
x=3 ans.
Proof:
3+2*2=7
3+4=7
7=7