Solve the System of Equations by Using the Inverse of the Coefficient

Multiple Choice

Solve the system of equations by using the inverse of the coefficient matrix.
- $\begin{array}{l}4 x+8 y-z=45 \\x+5 y+7 z=99 \\-7 x+y+z=-19\end{array}$

A) $(5,9,7)$
B) $(6,7,7)$
C) $(5,-9,-7)$
D) $(9,7,9)$