Solve the System $$\begin{array} { c } x + y + z = - 4 \\x - y + 4 z = 21 \\2 x + y + z = - 8\end{array}$$

question 109

Multiple Choice

Solve the system.
- $$\begin{array} { c } x + y + z = - 4 \\x - y + 4 z = 21 \\2 x + y + z = - 8\end{array}$$

• A) \(\{ ( 5 , - 4 , - 5 ) \}\)
• B) \(\{ ( 5 , - 5 , - 4 ) \}\)
• C) \(\{ ( - 4 , - 5,5 ) \}\)
• D) \(\varnothing\)

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Definitions:

Autonomy

The right or condition of self-governance, or the ability of an individual or organization to make their own decisions independently.

Cost Center

A division whose parent company rewards it for reducing the cost of producing a specified output.

Minimizing Costs

The process of reducing expenses to the lowest possible level while maintaining the desired level of quality or output.

Division

A distinct part of a larger company or organization that focuses on a specific area of business or operation.