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

question 200

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)

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