Solve for x
x=\frac{y-4}{y+2}
y\neq -2
Solve for y
y=\frac{2\left(x+2\right)}{1-x}
x\neq 1
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y\left(-x+1\right)=2x+4
Variable x cannot be equal to 1 since division by zero is not defined. Multiply both sides of the equation by -x+1.
-yx+y=2x+4
Use the distributive property to multiply y by -x+1.
-yx+y-2x=4
Subtract 2x from both sides.
-yx-2x=4-y
Subtract y from both sides.
\left(-y-2\right)x=4-y
Combine all terms containing x.
\frac{\left(-y-2\right)x}{-y-2}=\frac{4-y}{-y-2}
Divide both sides by -y-2.
x=\frac{4-y}{-y-2}
Dividing by -y-2 undoes the multiplication by -y-2.
x=-\frac{4-y}{y+2}
Divide 4-y by -y-2.
x=-\frac{4-y}{y+2}\text{, }x\neq 1
Variable x cannot be equal to 1.
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