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Use Cramer's Rule to Solve the System 4x+4z=40−7x+5y+6z=64−2x−2y=−16\begin{aligned}4 x + 4 z & = 40 \\- 7 x + 5 y + 6 z & = 64 \\- 2 x - 2 y & = - 16\end{aligned}

Question 63

Multiple Choice

Use Cramer's rule to solve the system.
- 4x+4z=40−7x+5y+6z=64−2x−2y=−16\begin{aligned}4 x + 4 z & = 40 \\- 7 x + 5 y + 6 z & = 64 \\- 2 x - 2 y & = - 16\end{aligned}


A) {(2,6,8) }\{ ( 2,6,8 ) \}
B) {(6,8,6) }\{ ( 6,8,6 ) \}
C) {(2,−6,−8) }\{ ( 2 , - 6 , - 8 ) \}
D) {(3,4,8) }\{ ( 3,4,8 ) \}

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