Algebra 2HardSystems of Equations

Systems of Equations · Hard problem

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

\begin{cases} - x + 4 y + z = 12 \\ 3 x - 4 y - 5 z = -6 \\ 5 x + 4 y - 3 z = 38 \end{cases}