Solve the System in Terms of the Arbitrary Variable X $$\begin{array} { r } x + y + z = 9 \\4 x - 3 y + 2 z = 7\end{array}$$

Multiple Choice

Solve the system in terms of the arbitrary variable x.
- $$\begin{array} { r } x + y + z = 9 \\4 x - 3 y + 2 z = 7\end{array}$$

A) $\left\{ \left( x , \frac { 2 x + 11 } { 5 } , \frac { - 7 x + 34 } { 5 } \right) \right\}$

B) $\left\{ \left( x , \frac { 2 x - 11 } { 5 } , \frac { - 7 x + 34 } { 5 } \right) \right\}$

C) $\left\{ \left\{ x , \frac { 2 x + 11 } { 5 } , \frac { x + 34 } { 5 } \right) \right\}$

D) $\varnothing$