Solve the System in Terms of the Arbitrary Variable X $$\begin{array} { l } x - 6 y + z = 10 \\6 x - y - z = 18\end{array}$$

Multiple Choice

Solve the system in terms of the arbitrary variable x.
- $$\begin{array} { l } x - 6 y + z = 10 \\6 x - y - z = 18\end{array}$$

A) $\{ ( x , x - 4,6 x - 14 ) \}$
B) $\{ ( x , x - 4,5 x ) \}$
C) $\{ ( x , x - 4,5 x - 14 ) \}$
D) $\{ ( 0 , - 4 , - 14 ) \}$