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