Apply Gaussian Elimination to Systems Without Unique Solutions
Use Gaussian $$\begin{aligned}x + 8 y + 8 z & = 8 \\7 x + 7 y + z & = 1 \\8 x + 15 y + 9 z & = - 9\end{aligned}$$

question 92

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.
- $$\begin{aligned}x + 8 y + 8 z & = 8 \\7 x + 7 y + z & = 1 \\8 x + 15 y + 9 z & = - 9\end{aligned}$$

• A) \(\varnothing\)
• B) \(\{ ( 0,0,1 ) \}\)
• C) \(\{ ( 1 , - 1,1 ) \}\)
• D) \(\{ ( - 1,0,1 ) \}\)

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