Use Matrices to Solve the System $$\left\{ \begin{aligned}5 x + y + 10 z & = 9 \\4 x + 2 y - 10 z & = 84 \\3 x - 4 y & = 11\end{aligned} \right.$$

Multiple Choice

Use matrices to solve the system. $$\left\{ \begin{aligned}5 x + y + 10 z & = 9 \\4 x + 2 y - 10 z & = 84 \\3 x - 4 y & = 11\end{aligned} \right.$$

A) $( 9,9 , - 4 )$
B) $( 9,4 , - 4 )$
C) $( 4,9 , - 4 )$
D) $( 4,4 , - 9 )$
E) $\text { The system is inconsistent. }$