Solve the System $$\left\{ \begin{array} { l } x - y + z = - 11 \\x + y + z = - 1 \\x + y - z = 1\end{array} \right.$$

question 2

Multiple Choice

Solve the system.
- $$\left\{ \begin{array} { l } x - y + z = - 11 \\x + y + z = - 1 \\x + y - z = 1\end{array} \right.$$

• A) \(( - 1 , - 5,5 )\)
• B) \(( - 5,5 , - 1 )\)
• C) \(( - 5 , - 1,5 )\)
• D) \(\varnothing\)

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