$\left\{\begin{matrix}E=-\frac{1-X}{6HNWX}\text{, }&X\neq 0\text{ and }N\neq 0\text{ and }H\neq 0\text{ and }W\neq 0\\E\in \mathrm{C}\text{, }&\left(W=0\text{ or }H=0\text{ or }N=0\right)\text{ and }X=1\end{matrix}\right.$

$\left\{\begin{matrix}H=-\frac{1-X}{6ENWX}\text{, }&X\neq 0\text{ and }N\neq 0\text{ and }E\neq 0\text{ and }W\neq 0\\H\in \mathrm{C}\text{, }&\left(W=0\text{ or }E=0\text{ or }N=0\right)\text{ and }X=1\end{matrix}\right.$

$\left\{\begin{matrix}E=-\frac{1-X}{6HNWX}\text{, }&X\neq 0\text{ and }N\neq 0\text{ and }H\neq 0\text{ and }W\neq 0\\E\in \mathrm{R}\text{, }&\left(W=0\text{ or }H=0\text{ or }N=0\right)\text{ and }X=1\end{matrix}\right.$

$\left\{\begin{matrix}H=-\frac{1-X}{6ENWX}\text{, }&X\neq 0\text{ and }N\neq 0\text{ and }E\neq 0\text{ and }W\neq 0\\H\in \mathrm{R}\text{, }&\left(W=0\text{ or }E=0\text{ or }N=0\right)\text{ and }X=1\end{matrix}\right.$