Answer :
elliminateion
multiply first equation by -2 and add to 2nd equation
-4x-6y=4
4x+7y=-6 +
0x+1y=-2
y=-2
sub back
2x+3y=-2
2x+3(-2)=-2
2x-6=-2
2x=4
x=2
(x,y)
(2,-2)
multiply first equation by -2 and add to 2nd equation
-4x-6y=4
4x+7y=-6 +
0x+1y=-2
y=-2
sub back
2x+3y=-2
2x+3(-2)=-2
2x-6=-2
2x=4
x=2
(x,y)
(2,-2)