Solve the System of Linear Equations $$\left\{ \begin{aligned}x + y + z & = - 11 \\x - 6 y - 3 z & = 13 \\6 y - 7 z & = 42\end{aligned} \right.$$

Solve the system of linear equations.
$$\left\{ \begin{aligned}x + y + z & = - 11 \\x - 6 y - 3 z & = 13 \\6 y - 7 z & = 42\end{aligned} \right.$$

A) $( - 6 , - 1 , - 4 )$
B) $( - 1 , - 6 , - 4 )$
C) $( - 5,0 , - 6 )$
D) $( 0 , - 5 , - 6 )$
E) $( - 2 , - 2 , - 7 )$

Correct Answer:

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