Solve by Determinants $3 x+3 z=6$ $\begin{aligned}4 y+2 z & =-12 \\2 x+6 y+4 z & =9 \\2 x+4 y+4 w & =-8\end{aligned}$

Short Answer

Solve by determinants: $3 x+3 z=6$
$\begin{aligned}4 y+2 z & =-12 \\2 x+6 y+4 z & =9 \\2 x+4 y+4 w & =-8\end{aligned}$