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Use Cramer's Rule to Solve the System of Equations xy+2z=35x+z=3x+5y+z=18\begin{array} { r } x - y + 2 z = 3 \\5 x + z = 3 \\x + 5 y + z = 18\end{array}

Question 339

Multiple Choice

Use Cramer's rule to solve the system of equations. If D = 0, use another method to determine the solution set.
- xy+2z=35x+z=3x+5y+z=18\begin{array} { r } x - y + 2 z = 3 \\5 x + z = 3 \\x + 5 y + z = 18\end{array}


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

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