Solve for y (complex solution)
\left\{\begin{matrix}\\y=-2x\text{, }&\text{unconditionally}\\y\in \mathrm{C}\text{, }&x=0\end{matrix}\right.
Solve for y
\left\{\begin{matrix}\\y=-2x\text{, }&\text{unconditionally}\\y\in \mathrm{R}\text{, }&x=0\end{matrix}\right.
Solve for x
x=-\frac{y}{2}
x=0
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4xy=-8x^{2}
Subtract 8x^{2} from both sides. Anything subtracted from zero gives its negation.
\frac{4xy}{4x}=-\frac{8x^{2}}{4x}
Divide both sides by 4x.
y=-\frac{8x^{2}}{4x}
Dividing by 4x undoes the multiplication by 4x.
y=-2x
Divide -8x^{2} by 4x.
4xy=-8x^{2}
Subtract 8x^{2} from both sides. Anything subtracted from zero gives its negation.
\frac{4xy}{4x}=-\frac{8x^{2}}{4x}
Divide both sides by 4x.
y=-\frac{8x^{2}}{4x}
Dividing by 4x undoes the multiplication by 4x.
y=-2x
Divide -8x^{2} by 4x.
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