Solve for F
\left\{\begin{matrix}F=\frac{a}{I}\text{, }&I\neq 0\\F\in \mathrm{R}\text{, }&a=0\text{ and }I=0\end{matrix}\right.
Solve for I
\left\{\begin{matrix}I=\frac{a}{F}\text{, }&F\neq 0\\I\in \mathrm{R}\text{, }&a=0\text{ and }F=0\end{matrix}\right.
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IF=a
The equation is in standard form.
\frac{IF}{I}=\frac{a}{I}
Divide both sides by I.
F=\frac{a}{I}
Dividing by I undoes the multiplication by I.
FI=a
The equation is in standard form.
\frac{FI}{F}=\frac{a}{F}
Divide both sides by F.
I=\frac{a}{F}
Dividing by F undoes the multiplication by F.
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