Solve for S
\left\{\begin{matrix}S=-\frac{iy}{X}\text{, }&X\neq 0\\S\in \mathrm{C}\text{, }&y=0\text{ and }X=0\end{matrix}\right.
Solve for X
\left\{\begin{matrix}X=-\frac{iy}{S}\text{, }&S\neq 0\\X\in \mathrm{C}\text{, }&y=0\text{ and }S=0\end{matrix}\right.
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iXS=y
The equation is in standard form.
\frac{iXS}{iX}=\frac{y}{iX}
Divide both sides by iX.
S=\frac{y}{iX}
Dividing by iX undoes the multiplication by iX.
S=-\frac{iy}{X}
Divide y by iX.
iSX=y
The equation is in standard form.
\frac{iSX}{iS}=\frac{y}{iS}
Divide both sides by iS.
X=\frac{y}{iS}
Dividing by iS undoes the multiplication by iS.
X=-\frac{iy}{S}
Divide y by iS.
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