Solve the System, If Possible, by Using Cramer's Rule $\begin{array} { l } - 9 x + 27 y + 9 z = 7 \\18 x + 45 y = 14 \\27 x + 9 y - 18 z = - 7\end{array}$

question 6

Multiple Choice

Solve the system, if possible, by using Cramer's rule. If Cramer's rule does not apply, solve the system by
using another method.
- $\begin{array} { l } - 9 x + 27 y + 9 z = 7 \\18 x + 45 y = 14 \\27 x + 9 y - 18 z = - 7\end{array}$

• A){ }
• B) \(\left\{ \left( - \frac { 7 } { 9 } , 0 , - \frac { 14 } { 9 } \right) \right\}\)
• C) \(\left\{ \left( \frac { 7 } { 9 } , 0 , \frac { 14 } { 9 } \right) \right\}\)
• D) \(\left\{ \left( - \frac { 7 } { 9 } + z , 0 , z \mid z \right. \right.\) is any real number \(\}\)

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