Use Cramerʹs Rule to Solve the System of Equations $$\begin{array} { l } 8 x + 2 z = 52 \\7 x + 6 y + 8 z = 82 \\- 9 x - 8 y \quad = - 86\end{array}$$

question 221

Multiple Choice

Use Cramerʹs rule to solve the system of equations. If D = 0, use another method to determine the solution set.
- $$\begin{array} { l } 8 x + 2 z = 52 \\7 x + 6 y + 8 z = 82 \\- 9 x - 8 y \quad = - 86\end{array}$$

• A) \(\{ ( 6 , - 4 , - 2 ) \}\)
• B) \(( \{ 7,2,2 ) \}\)
• C) \(\{ ( 4,2,4 ) \}\)
• D) \(\{ ( 6,4,2 ) \}\)

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