Solve the system by using the inverse of the coefficient matrix.
-$$\begin{array} { r }
- 3 x - 3 y - z = - 46 \
x - 9 y + 5 z = - 46 \
- 4 x + y + z = - 12
\end{array}$$
A) $\{ ( - 6,8,12 ) \}$
B) $\varnothing$
C) $\{ ( 6,8,4 ) \}$
D) $\{ ( 6,4,8 ) \}$

Question

Solve the system by using the inverse of the coefficient matrix.
-$$\begin{array} { r } 
- 3 x - 3 y - z = - 46 \
x - 9 y + 5 z = - 46 \
- 4 x + y + z = - 12
\end{array}$$
A) $\{ ( - 6,8,12 ) \}$
B) $\varnothing$
C) $\{ ( 6,8,4 ) \}$
D) $\{ ( 6,4,8 ) \}$

Quizplus · Accepted Answer

The Answer of Solve the system by using the inverse of the coefficient matrix.
-$$\begin{array} { r } 
- 3 x - 3 y - z = - 46 \
x - 9 y + 5 z = - 46 \
- 4 x + y + z = - 12
\end{array}$$
A) $\{ ( - 6,8,12 ) \}$
B) $\varnothing$
C) $\{ ( 6,8,4 ) \}$
D) $\{ ( 6,4,8 ) \}$

Solve the System by Using the Inverse of the Coefficient −3x−3y−z=−46x−9y+5z=−46−4x+y+z=−12\begin{array} { r } - 3 x - 3 y - z = - 46 \\x - 9 y + 5 z = - 46 \\- 4 x + y + z = - 12\end{array}−3x−3y−z=−46x−9y+5z=−46−4x+y+z=−12​

Solve the System by Using the Inverse of the Coefficient $\begin{array} { r } - 3 x - 3 y - z = - 46 \\x - 9 y + 5 z = - 46 \\- 4 x + y + z = - 12\end{array}$