Use Cramer's Rule to Solve the System of Equations $\begin{array} { r } x - y + 4 z = 14 \\3 x + z = 4 \\x + 5 y + z = 14\end{array}$

question 442

Multiple Choice

Use Cramer's rule to solve the system of equations. If D = 0, use another method to determine the solution set.
$\begin{array} { r } x - y + 4 z = 14 \\3 x + z = 4 \\x + 5 y + z = 14\end{array}$

• A) {(4,0,2)}
• B) {(0,2,4)}
• C) Cramer's rule does not apply since \(D = 0 ; \varnothing\)
• D) {(4,2,0)}

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