Solve the System of Equations by Finding the Reduced Row $x + y - 2 z = 8$

Multiple Choice

Solve the system of equations by finding the reduced row echelon form for the augmented matrix.
- $x + y - 2 z = 8$ $3 x + z = - 6$

A) $\left( \frac { 1 } { 3 } z - 2 , - \frac { 7 } { 3 } z + 10 , z \right)$
B) $\left( - 2 z + \frac { 1 } { 3 } , 10 z - \frac { 7 } { 3 } , z \right)$
C) $\left( - \frac { 1 } { 3 } z - 2 , \frac { 7 } { 3 } z + 10 , z \right)$
D) $\left( \frac { 1 } { 3 } z + 2 , - \frac { 7 } { 3 } z - 10 , z \right)$