Solve the System $$\left\{ \begin{array} { r r } x - 5 y - z = & 5 \\- 3 x + 15 y + 3 z = & - 15 \\4 x - 20 y - 4 z = & 20\end{array} \right.$$

question 130

Multiple Choice

Solve the system.
- $$\left\{ \begin{array} { r r } x - 5 y - z = & 5 \\- 3 x + 15 y + 3 z = & - 15 \\4 x - 20 y - 4 z = & 20\end{array} \right.$$

• A) \(( - 3,4 , - 28 )\)
• B) \(( 4 , - 3,14 )\)
• C) \(\{ ( x , y , z ) \mid x - 5 y - z = 5 \}\)
• D) \(\varnothing\)

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