Solve the linear system LaTeX: \displaystyle \begin{cases} 5 x - 9 y - 3 z = -153 \\ 5 x + 4 y + 7 z = 54 \\ - 5 x + 8 y - 5 z = 72 \\ \end{cases}

The Solution is LaTeX: \displaystyle (-9, 9, 9) .