Solve for x (complex solution)
\left\{\begin{matrix}x=\frac{y}{f}\text{, }&f\neq 0\\x\in \mathrm{C}\text{, }&y=0\text{ and }f=0\end{matrix}\right.
Solve for x
\left\{\begin{matrix}x=\frac{y}{f}\text{, }&f\neq 0\\x\in \mathrm{R}\text{, }&y=0\text{ and }f=0\end{matrix}\right.
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fx=y
Swap sides so that all variable terms are on the left hand side.
\frac{fx}{f}=\frac{y}{f}
Divide both sides by f.
x=\frac{y}{f}
Dividing by f undoes the multiplication by f.
fx=y
Swap sides so that all variable terms are on the left hand side.
\frac{fx}{f}=\frac{y}{f}
Divide both sides by f.
x=\frac{y}{f}
Dividing by f undoes the multiplication by f.
Examples
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Matrix
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Simultaneous equation
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Limits
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