$$5+3(2oc+i^{2})=6-h(oc+1)$$
$\left\{\begin{matrix}c=-\frac{h-4}{o\left(h+6\right)}\text{, }&h\neq -6\text{ and }o\neq 0\\c\in \mathrm{C}\text{, }&h=4\text{ and }o=0\end{matrix}\right.$
$h=\frac{2\left(2-3co\right)}{co+1}$
$c=0\text{ or }o\neq -\frac{1}{c}$