Solve for N
\left\{\begin{matrix}N=\frac{p}{P}\text{, }&P\neq 0\\N\in \mathrm{R}\text{, }&p=0\text{ and }P=0\end{matrix}\right.
Solve for P
\left\{\begin{matrix}P=\frac{p}{N}\text{, }&N\neq 0\\P\in \mathrm{R}\text{, }&p=0\text{ and }N=0\end{matrix}\right.
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NP=p
Swap sides so that all variable terms are on the left hand side.
PN=p
The equation is in standard form.
\frac{PN}{P}=\frac{p}{P}
Divide both sides by P.
N=\frac{p}{P}
Dividing by P undoes the multiplication by P.
NP=p
Swap sides so that all variable terms are on the left hand side.
\frac{NP}{N}=\frac{p}{N}
Divide both sides by N.
P=\frac{p}{N}
Dividing by N undoes the multiplication by N.
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