Solve the System $$\left( \begin{array} { r l } x + 2 y - z & = 9 \\x + 3 y + 2 z & = 11 \\- x - 3 y - 2 z & = - 11\end{array} \right)$$

Solve the system. $$\left( \begin{array} { r l } x + 2 y - z & = 9 \\x + 3 y + 2 z & = 11 \\- x - 3 y - 2 z & = - 11\end{array} \right)$$

A) $( 7 k + 5 , - 3 k + 2 , k )$ , $k$ is a real number
B) $( 6 k + 6 , - 2 k + 2 , k )$ , $k$ is a real number
C) $( 7 k + 5 , - 2 k + 2 , k )$ , $k$ is a real number
D) $( 6 k + 6 , - 3 k + 2 , k )$ , $k$ is a real number
E) $( 6 k + 5 , - 3 k + 2 , k )$ , $k$ is a real number

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