Solve
- $$\begin{array} { l } x - y + z = 8 \\x + y + z = 6 \\x + y - z = - 12\end{array}$$

question 61

Multiple Choice

Solve.
- $$\begin{array} { l } x - y + z = 8 \\x + y + z = 6 \\x + y - z = - 12\end{array}$$

• A) \(( 2 , - 1 , - 9 )\)
• B) \(( - 2 , - 1 , - 9 )\)
• C) \(( 2 , - 1,9 )\)
• D) \(( - 2 , - 1,9 )\)

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