Use Gaussian Elimination to Solve the Linear System by Finding $$\begin{aligned}x - y + 5 z & = - 5 \\3 x + z & = 0 \\x + 3 y + z & = 15\end{aligned}$$

Multiple Choice

Use Gaussian elimination to solve the linear system by finding an equivalent system in triangular form.
- $$\begin{aligned}x - y + 5 z & = - 5 \\3 x + z & = 0 \\x + 3 y + z & = 15\end{aligned}$$

A) (0, 5, -5)
B) (0, 0, 5)
C) no solution
D) (0, 5, 0)