Use a Graphing Calculator to Express Solutions with Approximations to the Nearest

Multiple Choice

Use a graphing calculator to Express solutions with approximations to the nearest thousandth.
- $$\begin{array} { l } 3 x + 4 y + z = 6 \\3 x - 3 y - z = 22 \\5 x + y + 4 z = 19\end{array}$$

A) $\{ ( - 1 , - 2,5 ) \}$
B) $\{ ( 5 , - 2 , - 1 ) \}$
C) $\varnothing$
D) $\{ ( 5 , - 1 , - 2 ) \}$