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Use Matrices and Gauss-Jordan Elimination to Solve Systems
- −3x−y−7z=−763x+3y−6z=−27−9x−2y+z=−23\begin{aligned}- 3 x - y - 7 z & = - 76 \\3 x + 3 y - 6 z & = - 27 \\- 9 x - 2 y + z & = - 23\end{aligned}

Question 6

Multiple Choice

Use Matrices and Gauss-Jordan Elimination to Solve Systems
- −3x−y−7z=−763x+3y−6z=−27−9x−2y+z=−23\begin{aligned}- 3 x - y - 7 z & = - 76 \\3 x + 3 y - 6 z & = - 27 \\- 9 x - 2 y + z & = - 23\end{aligned}


A) {(2,7,9) }\{ ( 2,7,9 ) \}
B) {(2,9,7) }\{ ( 2,9,7 ) \}
C) {(−2,7,4) }\{ ( - 2,7,4 ) \}
D) {(4,7,−2) }\{ ( 4,7 , - 2 ) \}

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