Solve the System $$\left\{ \begin{array} { l } 3 x + 3 y + z = 2 \\5 x - 5 y - z = - 16 \\4 x + y + 5 z = - 21\end{array} \right.$$

question 72

Multiple Choice

Solve the system.
- $$\left\{ \begin{array} { l } 3 x + 3 y + z = 2 \\5 x - 5 y - z = - 16 \\4 x + y + 5 z = - 21\end{array} \right.$$

• A) \(( - 4,3 , - 1 )\)
• B) \(( - 1 , - 4,3 )\)
• C) \(( - 1,3 , - 4 )\)
• D) \(\varnothing\)

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