Solve for x
x=4-y
Solve for y
y=4-x
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2x-8=-2y
Subtract 2y from both sides. Anything subtracted from zero gives its negation.
2x=-2y+8
Add 8 to both sides.
2x=8-2y
The equation is in standard form.
\frac{2x}{2}=\frac{8-2y}{2}
Divide both sides by 2.
x=\frac{8-2y}{2}
Dividing by 2 undoes the multiplication by 2.
x=4-y
Divide -2y+8 by 2.
2y-8=-2x
Subtract 2x from both sides. Anything subtracted from zero gives its negation.
2y=-2x+8
Add 8 to both sides.
2y=8-2x
The equation is in standard form.
\frac{2y}{2}=\frac{8-2x}{2}
Divide both sides by 2.
y=\frac{8-2x}{2}
Dividing by 2 undoes the multiplication by 2.
y=4-x
Divide -2x+8 by 2.
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