Use Cramer's Rule to Solve the System of Equations $$\begin{array} { c } x + y + z = - 3 \\x - y + 5 z = - 13 \\3 x + y + z = 5\end{array}$$

question 431

Multiple Choice

Use Cramer's rule to solve the system of equations. If D = 0, use another method to determine the solution set.
- $$\begin{array} { c } x + y + z = - 3 \\x - y + 5 z = - 13 \\3 x + y + z = 5\end{array}$$

• A) Cramer's rule does not apply since \(D = 0 ; \varnothing\)
• B) \(\{ ( - 4,4 , - 3 ) \}\)
• C) \(\{ ( - 4 , - 3,4 ) \}\)
• D) \(\{ ( 4 , - 3 , - 4 ) \}\)

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