Use Cramer's Rule to Solve the Linear System $$\left\{ \begin{aligned}8 x - 3 z & = 29 \\2 x + 9 y + 5 z & = 104 \\2 x - 9 y & = - 31\end{aligned} \right.$$

question 111

Multiple Choice

Use Cramer's rule to solve the linear system.
- $$\left\{ \begin{aligned}8 x - 3 z & = 29 \\2 x + 9 y + 5 z & = 104 \\2 x - 9 y & = - 31\end{aligned} \right.$$

• A) x = 8, y = 3, z = 9
• B) x = 7, y = 5, z = 9
• C) x = 7, y = -5, z = -9
• D) x = 5, y = 9, z = 5

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