Solve the System of Equations $$\begin{array} { c } 5 x + 4 y + z = 23 \\4 x - 4 y - z = 13 \\5 x + y + 2 z = 19\end{array}$$

question 96

Multiple Choice

Solve the system of equations.
- $$\begin{array} { c } 5 x + 4 y + z = 23 \\4 x - 4 y - z = 13 \\5 x + y + 2 z = 19\end{array}$$

• A) \(\{ ( 4 , - 1,1 ) \}\)
• B) \(\{ ( 1,4 , - 1 ) \}\)
• C) \(\{ ( - 1,1,4 ) \}\)
• D) \(\{ ( 4,1 , - 1 ) \}\)

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The current value of a future sum of money or stream of cash flows given a specified rate of return, used in time value of money calculations.

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