Solve the system.
-$$\begin{array} { c }
x + y + z = - 4 \
x - y + 4 z = 21 \
2 x + y + z = - 8
\end{array}$$
A) $\{ ( 5 , - 4 , - 5 ) \}$
B) $\{ ( 5 , - 5 , - 4 ) \}$
C) $\{ ( - 4 , - 5,5 ) \}$
D) $\varnothing$

Question

Solve the system.
-$$\begin{array} { c } 
x + y + z = - 4 \
x - y + 4 z = 21 \
2 x + y + z = - 8
\end{array}$$
A) $\{ ( 5 , - 4 , - 5 ) \}$
B) $\{ ( 5 , - 5 , - 4 ) \}$
C) $\{ ( - 4 , - 5,5 ) \}$
D) $\varnothing$

Quizplus · Accepted Answer

The Answer of Solve the system.
-$$\begin{array} { c } 
x + y + z = - 4 \
x - y + 4 z = 21 \
2 x + y + z = - 8
\end{array}$$
A) $\{ ( 5 , - 4 , - 5 ) \}$
B) $\{ ( 5 , - 5 , - 4 ) \}$
C) $\{ ( - 4 , - 5,5 ) \}$
D) $\varnothing$

Solve the System x+y+z=−4x−y+4z=212x+y+z=−8\begin{array} { c } x + y + z = - 4 \\x - y + 4 z = 21 \\2 x + y + z = - 8\end{array}x+y+z=−4x−y+4z=212x+y+z=−8​

Solve the System $\begin{array} { c } x + y + z = - 4 \\x - y + 4 z = 21 \\2 x + y + z = - 8\end{array}$