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-1=yx+y\left(-2\right)
Multiply both sides of the equation by y.
yx+y\left(-2\right)=-1
Swap sides so that all variable terms are on the left hand side.
yx=-1-y\left(-2\right)
Subtract y\left(-2\right) from both sides.
yx=-1+2y
Multiply -1 and -2 to get 2.
yx=2y-1
The equation is in standard form.
\frac{yx}{y}=\frac{2y-1}{y}
Divide both sides by y.
x=\frac{2y-1}{y}
Dividing by y undoes the multiplication by y.
x=2-\frac{1}{y}
Divide 2y-1 by y.
-1=yx+y\left(-2\right)
Variable y cannot be equal to 0 since division by zero is not defined. Multiply both sides of the equation by y.
yx+y\left(-2\right)=-1
Swap sides so that all variable terms are on the left hand side.
\left(x-2\right)y=-1
Combine all terms containing y.
\frac{\left(x-2\right)y}{x-2}=-\frac{1}{x-2}
Divide both sides by x-2.
y=-\frac{1}{x-2}
Dividing by x-2 undoes the multiplication by x-2.
y=-\frac{1}{x-2}\text{, }y\neq 0
Variable y cannot be equal to 0.