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

Use a graphing calculator to Express solutions with approximations to the nearest thousandth.
- $$\begin{array} { c } x + y + z = 2 \\x - y + 4 z = - 5 \\3 x + y + z = - 6\end{array}$$

A) $\varnothing$
B) $\{ ( - 4,5,1 ) \}$
C) $\{ ( 1,5 , - 4 ) \}$
D) $\{ ( 1 , - 4,5 ) \}$

Correct Answer:

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