Solve the System $\left\{ \begin{array} { r r } x - 3 y - z = & - 5 \\5 x - 15 y - 5 z = & - 25 \\- 2 x + 6 y + 2 z = & 10\end{array} \right.$

question 76

Multiple Choice

Solve the system.
- $\left\{ \begin{array} { r r } x - 3 y - z = & - 5 \\5 x - 15 y - 5 z = & - 25 \\- 2 x + 6 y + 2 z = & 10\end{array} \right.$

• A) \(( 5 , - 2,16 )\)
• B) \(( - 2,5 , - 12 )\)
• C) \(\{ ( x , y , z ) \mid x - 3 y - z = - 5 \}\)
• D) \(\varnothing\)

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