Asked by shai.!*

2x-2y=10
2x+y=5
Answered by alexis
y=-5
x=0 .
Answered by Reiny
subtract the two equations
-3y = 5
y = -5/3

sub back into first equation
2x -2(-5/3) = 10
2x = 10 - 10/3
2x = 20/3
x = 10/3

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