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Use Cramer's Rule to Solve the System of Equations 3x7y6z=655x+9y5z=439x9y+8z=95\begin{array} { c } - 3 x - 7 y - 6 z = - 65 \\5 x + 9 y - 5 z = 43 \\9 x - 9 y + 8 z = 95\end{array}

Question 78

Multiple Choice

Use Cramer's rule to solve the system of equations. If D = 0, use another method to determine the solution set.
3x7y6z=655x+9y5z=439x9y+8z=95\begin{array} { c } - 3 x - 7 y - 6 z = - 65 \\5 x + 9 y - 5 z = 43 \\9 x - 9 y + 8 z = 95\end{array}


A) {(9,-2,-4) }
B) {(9,2,4) }
C) {(10,0,4) }
D) {(2,4,2) }

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