Use Cramer's Rule to Solve the System of Equations $\begin{array} { c } - 3 x - 7 y - 6 z = - 65 \\5 x + 9 y - 5 z = 43 \\9 x - 9 y + 8 z = 95\end{array}$

question 78

Multiple Choice

Use Cramer's rule to solve the system of equations. If D = 0, use another method to determine the solution set.
$\begin{array} { c } - 3 x - 7 y - 6 z = - 65 \\5 x + 9 y - 5 z = 43 \\9 x - 9 y + 8 z = 95\end{array}$

• A) {(9,-2,-4)}
• B) {(9,2,4)}
• C) {(10,0,4)}
• D) {(2,4,2)}

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