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Use Cramer's Rule to Solve the System of Equations x+y+z=3xy+5z=133x+y+z=5\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.
- x+y+z=3xy+5z=133x+y+z=5\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;D = 0 ; \varnothing
B) {(4,4,3) }\{ ( - 4,4 , - 3 ) \}
C) {(4,3,4) }\{ ( - 4 , - 3,4 ) \}
D) {(4,3,4) }\{ ( 4 , - 3 , - 4 ) \}

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