Solve
- $$\begin{array} { l r } 2 x + y + 4 z = & - 9 \\- x - 4 y + 2 z = & - 4 \\- 3 x - 5 y - 2 z = 5\end{array}$$

question 18

Multiple Choice

Solve.
- $$\begin{array} { l r } 2 x + y + 4 z = & - 9 \\- x - 4 y + 2 z = & - 4 \\- 3 x - 5 y - 2 z = 5\end{array}$$

• A) No solution; inconsistent system of equations
• B) Infinite number of solutions; dependent equations
• C) \(( 3 , - 3 , - 3 )\)
• D) \(( 0 , - 1 , - 4 )\)

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Definitions:

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