Use Gaussian Elimination to Solve the Linear System by Finding $$\begin{array} { l } 5 x + 4 y + z = - 16 \\5 x - 2 y - z = - 2 \\4 x + y + 3 z = 7\end{array}$$

Multiple Choice

Use Gaussian elimination to solve the linear system by finding an equivalent system in triangular form.
- $$\begin{array} { l } 5 x + 4 y + z = - 16 \\5 x - 2 y - z = - 2 \\4 x + y + 3 z = 7\end{array}$$

A) (-1, 5, -4)
B) no solution
C) (-1, -4, 5)
D) (5, -4, -1)