Apply Gaussian Elimination to Systems Without Unique Solutions
Use Gaussian $$\begin{array} { r } 4 x - y + 3 z = 12 \\x + 4 y + 6 z = - 32 \\5 x + 3 y + 9 z = 20\end{array}$$

question 15

Multiple Choice

Apply Gaussian Elimination to Systems Without Unique Solutions
Use Gaussian elimination to find the complete solution to the system of equations, or state that none exists.
- $$\begin{array} { r } 4 x - y + 3 z = 12 \\x + 4 y + 6 z = - 32 \\5 x + 3 y + 9 z = 20\end{array}$$

• A) \(\varnothing\)
• B) \(\{ ( 2 , - 7 , - 1 ) \}\)
• C) \(\{ ( 8 , - 7 , - 2 ) \}\)
• D) \(\{ ( - 8 , - 7,9 ) \}\)

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