Use Gaussian elimination to solve the linear system by finding an equivalent system in triangular form.
-$$\begin{array} { r }
x - y + 5 z = - 21 \
5 x + z = - 4 \
x + 2 y + z = - 2
\end{array}$$
A) $( - 4,0,1 )$
B) no solution
C) $( - 4,1,0 )$
D) $( 0,1 , - 4 )$

Question

Use Gaussian elimination to solve the linear system by finding an equivalent system in triangular form.
-$$\begin{array} { r } 
x - y + 5 z = - 21 \
5 x + z = - 4 \
x + 2 y + z = - 2
\end{array}$$
A) $( - 4,0,1 )$
B) no solution
C) $( - 4,1,0 )$
D) $( 0,1 , - 4 )$

Quizplus · Accepted Answer

The Answer of Use Gaussian elimination to solve the linear system by finding an equivalent system in triangular form.
-$$\begin{array} { r } 
x - y + 5 z = - 21 \
5 x + z = - 4 \
x + 2 y + z = - 2
\end{array}$$
A) $( - 4,0,1 )$
B) no solution
C) $( - 4,1,0 )$
D) $( 0,1 , - 4 )$

Use Gaussian Elimination to Solve the Linear System by Finding x−y+5z=−215x+z=−4x+2y+z=−2\begin{array} { r } x - y + 5 z = - 21 \\5 x + z = - 4 \\x + 2 y + z = - 2\end{array}x−y+5z=−215x+z=−4x+2y+z=−2​

Use Gaussian Elimination to Solve the Linear System by Finding $\begin{array} { r } x - y + 5 z = - 21 \\5 x + z = - 4 \\x + 2 y + z = - 2\end{array}$