Apply Gaussian Elimination to Systems with More Variables Than Equations $$\begin{array} { l } x + y + z = 9 \\2 x - 3 y + 4 z = 7\end{array}$$

question 42

Multiple Choice

Apply Gaussian Elimination to Systems with More Variables than Equations
- $$\begin{array} { l } x + y + z = 9 \\2 x - 3 y + 4 z = 7\end{array}$$

• A) \(\left\{ \left( - \frac { 7 } { 5 } \mathrm { z } + \frac { 34 } { 5 } , \frac { 2 } { 5 } \mathrm { z } + \frac { 11 } { 5 } , \mathrm { z } \right) \right\}\)
• B) \(\left\{ \left( \frac { 3 } { 5 } z + \frac { 16 } { 5 } , - \frac { 8 } { 5 } z + \frac { 29 } { 5 } , z \right) \right\}\)
• C) \(\left\{ \left( \frac { 27 } { 5 } , \frac { 13 } { 5 } , 1 \right) \right\}\)
• D) \(\varnothing\)

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