$$= 6 c m \quad = 4.5 c m$$
$\left\{\begin{matrix}\\c=0\text{, }&\text{unconditionally}\\c\in \mathrm{R}\text{, }&m=0\end{matrix}\right.$
$$6cm-4.5cm=0$$
$$1.5cm=0$$
$$\frac{3m}{2}c=0$$
$$c=0$$
Show Solution
Hide Solution
$\left\{\begin{matrix}\\m=0\text{, }&\text{unconditionally}\\m\in \mathrm{R}\text{, }&c=0\end{matrix}\right.$
$$\frac{3c}{2}m=0$$
$$m=0$$
