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2*(-2-2y)-y=1
-4-4y-y=1
-5y=5
y=-1
x=-2+2=0
b)x=-2-4y
3*(-2-4y)-8y=10
-6-12y-8y=10
-20y=16
y=-0,8
x=-2+3,2=1,2
c)x=3+2y
-2*(3+2y)+y=0
-6-4y+y=0
-3y=6/(-3)
y=-2
x=3+(-4)=-1
d)y=9-2x
5x-4*(9-2x)=3
5x-36+8x=3
13x=39
x=3
y=9-6=3
e)y=-4+2x
3x-2*(-4+2x)=5
3x+8-4x=5
-x=-3
x=3
y=-4+6=2