Use Cramerʹs Rule to Solve the System of Equations $$\begin{array} { l } 2 x - 2 y - 6 z = - 22 \\4 x + 8 y + 5 z = 120 \\9 x - 3 y + 2 z = 65\end{array}$$

question 372

Multiple Choice

Use Cramerʹs rule to solve the system of equations. If D = 0, use another method to determine the solution set.
- $$\begin{array} { l } 2 x - 2 y - 6 z = - 22 \\4 x + 8 y + 5 z = 120 \\9 x - 3 y + 2 z = 65\end{array}$$

• A) \(\{ ( 9 , - 8 , - 4 ) \}\)
• B) \(\{ ( 10,6,4 ) \}\)
• C) \(\{ ( 8,4,8 ) \}\)
• D) \(\{ ( 9,8,4 ) \}\)

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