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Solve the System Using Gaussian Elimination {x+y=−2x+z=−4y+z=−4\left\{ \begin{array} { l } x + y = - 2 \\x + z = - 4 \\y + z = - 4\end{array} \right.

Question 47

Multiple Choice

Solve the system using Gaussian elimination.​ {x+y=−2x+z=−4y+z=−4\left\{ \begin{array} { l } x + y = - 2 \\x + z = - 4 \\y + z = - 4\end{array} \right. ​


A) (1,1,3) ( 1,1,3 )
B) (−1,−1,−3) ( - 1 , - 1 , - 3 )
C) (1,1,−3) ( 1,1 , - 3 )
D) (1,−1,−3) ( 1 , - 1 , - 3 )
E) (−1,1,−3) ( - 1,1 , - 3 )

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