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Solve the System of Linear Equations {2x+3y4z=194xyz=224x+yz=12\left\{ \begin{array} { l l } - 2 x + 3 y - 4 z & = - 19 \\4 x - y - z & = 22 \\4 x + y - z & = 12\end{array} \right.

Question 39

Multiple Choice

Solve the system of linear equations.? {2x+3y4z=194xyz=224x+yz=12\left\{ \begin{array} { l l } - 2 x + 3 y - 4 z & = - 19 \\4 x - y - z & = 22 \\4 x + y - z & = 12\end{array} \right.


A) ? (1,4,4) ( 1 , - 4 , - 4 )
B) ? (4,5,1) ( 4 , - 5 , - 1 )
C) ? (5,1,4) ( - 5 , - 1,4 )
D) inconsistent
E) ? (4,1,4) ( - 4,1 , - 4 )

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