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Solve the Linear System Using an Inverse Matrix x+2y+3z=1x+y+z=42x+2y+z=6\begin{array} { c } x + 2 y + 3 z = 1 \\x + y + z = - 4 \\2 x + 2 y + z = - 6\end{array}

Question 82

Multiple Choice

Solve the linear system using an inverse matrix.
- x+2y+3z=1x+y+z=42x+2y+z=6\begin{array} { c } x + 2 y + 3 z = 1 \\x + y + z = - 4 \\2 x + 2 y + z = - 6\end{array}


A) (5,12,1) ( - 5,12 , - 1 )
B) (4,8,6) ( 4,8 , - 6 )
C) (21,31,14) ( - 21 , - 31 , - 14 )
D) (11,9,2) ( - 11,9 , - 2 )

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