Solve the System of Equations by Using an Inverse Matrix $$\begin{aligned}- 5 x - y + 2 z & = - 29 \\8 x + 8 y + 2 z & = 90 \\- 7 x - 6 y + z & = - 70\end{aligned}$$

Multiple Choice

Solve the system of equations by using an inverse matrix.
- $$\begin{aligned}- 5 x - y + 2 z & = - 29 \\8 x + 8 y + 2 z & = 90 \\- 7 x - 6 y + z & = - 70\end{aligned}$$

A) $( 5,6,1 )$
B) $\varnothing$
C) $( 5,1,6 )$
D) $( - 5,6,10 )$