Solve for P (complex solution)
\left\{\begin{matrix}P=\frac{B}{r}\text{, }&r\neq 0\\P\in \mathrm{C}\text{, }&B=0\text{ and }r=0\end{matrix}\right.
Solve for P
\left\{\begin{matrix}P=\frac{B}{r}\text{, }&r\neq 0\\P\in \mathrm{R}\text{, }&B=0\text{ and }r=0\end{matrix}\right.
Solve for B
B=Pr
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rP=B
Swap sides so that all variable terms are on the left hand side.
\frac{rP}{r}=\frac{B}{r}
Divide both sides by r.
P=\frac{B}{r}
Dividing by r undoes the multiplication by r.
rP=B
Swap sides so that all variable terms are on the left hand side.
\frac{rP}{r}=\frac{B}{r}
Divide both sides by r.
P=\frac{B}{r}
Dividing by r undoes the multiplication by r.
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