Solve the System in Terms of the Arbitrary Variable X $$x - 3 y + z = 13$$

Multiple Choice

Solve the system in terms of the arbitrary variable x.
- $$x - 3 y + z = 13$$
$3 x - y - z = 3$

A) $\{ ( x , x - 4,3 x + 1 ) \}$
B) $\{ ( 0 , - 4,1 ) \}$
C) $\{ ( x , x - 4,2 x ) \}$
D) $\{ ( x , x - 4,2 x + 1 ) \}$