Solve the System of Linear Equations A) $( - 1,5,1 , - 2 )$

question 14

Multiple Choice

Solve the system of linear equations.
$$\left\{ \begin{array} { c } x + y + z + w = 3 \\- x - y + z + w = - 5 \\x \quad + 3 z + w = - 6 \\- 4 x - 4 y - 2 z - w = - 13\end{array} \right.$$

• A) \(( - 1,5,1 , - 2 )\)
• B) \(( - 1 , - 2,5,1 )\)
• C) \(( 1,5 , - 2 , - 1 )\)
• D) \(( - 1,5 , - 2,1 )\)
• E) inconsistent

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