Use an Inverse Matrix to Find the Solution to the System

Multiple Choice

Use an inverse matrix to find the solution to the system.
- $$\left\{ \begin{aligned}4 x + 3 z & = 43 \\8 x + 6 y + 8 z & = 102 \\- 4 x - 6 y & = - 34\end{aligned} \right.$$

A) $x = 7 , y = 1 , z = 5$
B) $x = 8 , y = - 1 , z = 5$
C) $x = 1 , y = 5 , z = 1$
D) $x = 7 , y = - 1 , z = - 5$