Algebra 2HardSystems of Equations

Systems of Equations · Hard problem

Solve the system for $x$ , $y$ and $z$ .

\begin{cases} - 3 x + 3 z = -36 \\ - 4 x - 3 y = -12 \\ - 2 x - 3 y - 5 z = 30 \end{cases}