Use matrices to solve the system of equations. $\left\{ \begin{array} { r }
6 x + y - z = 21 \
x + 2 y + z = 15 \
5 y - z = 23
\end{array} \right.$
A) $( 4,6,2 )$
B) $( 3,5,2 )$
C) $( - 3 , - 5 , - 2 )$
D) no solution
E) infinitely many solutions

Question

Use matrices to solve the system of equations. $\left\{ \begin{array} { r } 
6 x + y - z = 21 \
x + 2 y + z = 15 \
5 y - z = 23
\end{array} \right.$
A) $( 4,6,2 )$
B) $( 3,5,2 )$
C) $( - 3 , - 5 , - 2 )$
D) no solution
E) infinitely many solutions

Quizplus · Accepted Answer

The Answer of Use matrices to solve the system of equations. $\left\{ \begin{array} { r } 
6 x + y - z = 21 \
x + 2 y + z = 15 \
5 y - z = 23
\end{array} \right.$
A) $( 4,6,2 )$
B) $( 3,5,2 )$
C) $( - 3 , - 5 , - 2 )$
D) no solution
E) infinitely many solutions

Use Matrices to Solve the System of Equations {6x+y−z=21x+2y+z=155y−z=23\left\{ \begin{array} { r } 6 x + y - z = 21 \\x + 2 y + z = 15 \\5 y - z = 23\end{array} \right.⎩⎨⎧​6x+y−z=21x+2y+z=155y−z=23​

Use Matrices to Solve the System of Equations $\left\{ \begin{array} { r } 6 x + y - z = 21 \\x + 2 y + z = 15 \\5 y - z = 23\end{array} \right.$