$\left\{\begin{matrix}B=\frac{X+2}{C}\text{, }&C\neq 0\\B\in \mathrm{R}\text{, }&X=-2\text{ and }C=0\end{matrix}\right.$

$\left\{\begin{matrix}C=\frac{X+2}{B}\text{, }&B\neq 0\\C\in \mathrm{R}\text{, }&X=-2\text{ and }B=0\end{matrix}\right.$