Solve the system.
-$\left\{ \begin{array} { l }
2 x + 5 y + z = - 18 \
3 x - 3 y - z = 23 \
3 x + y + 4 z = 8
\end{array} \right.$
A) $( 1 , - 5,3 )$
B) $( 3,1 , - 5 )$
C) $( 3 , - 5,1 )$
D) $\varnothing$

Question

Solve the system.
-$\left\{ \begin{array} { l } 
2 x + 5 y + z = - 18 \
3 x - 3 y - z = 23 \
3 x + y + 4 z = 8
\end{array} \right.$
A) $( 1 , - 5,3 )$
B) $( 3,1 , - 5 )$
C) $( 3 , - 5,1 )$
D) $\varnothing$

Quizplus · Accepted Answer

Substituting $x = 3$, $y = -5$, and $z = 1$ into each equation satisfies all three equations, confirming it as the solution.

Solve the System {2x+5y+z=−183x−3y−z=233x+y+4z=8\left\{ \begin{array} { l } 2 x + 5 y + z = - 18 \\3 x - 3 y - z = 23 \\3 x + y + 4 z = 8\end{array} \right.⎩⎨⎧​2x+5y+z=−183x−3y−z=233x+y+4z=8​

Solve the System $\left\{ \begin{array} { l } 2 x + 5 y + z = - 18 \\3 x - 3 y - z = 23 \\3 x + y + 4 z = 8\end{array} \right.$