Solve for x
x=\frac{y+2}{2}
Solve for y
y=2\left(x-1\right)
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-4x+4=-2y
Subtract 2y from both sides. Anything subtracted from zero gives its negation.
-4x=-2y-4
Subtract 4 from both sides.
\frac{-4x}{-4}=\frac{-2y-4}{-4}
Divide both sides by -4.
x=\frac{-2y-4}{-4}
Dividing by -4 undoes the multiplication by -4.
x=\frac{y}{2}+1
Divide -2y-4 by -4.
2y+4=4x
Add 4x to both sides. Anything plus zero gives itself.
2y=4x-4
Subtract 4 from both sides.
\frac{2y}{2}=\frac{4x-4}{2}
Divide both sides by 2.
y=\frac{4x-4}{2}
Dividing by 2 undoes the multiplication by 2.
y=2x-2
Divide -4+4x by 2.
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Limits
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