Use Matrices and Gauss-Jordan Elimination to Solve Systems
Solve the System

question 62

Multiple Choice

Use Matrices and Gauss-Jordan Elimination to Solve Systems
Solve the system of equations using matrices. Use Gauss-Jordan elimination.
- $$\begin{array} { r r } 6 x - 7 y - z = & 9 \\x + 4 y - 7 z = & - 12 \\- 2 x + y + z = & - 5\end{array}$$

• A) \(\{ ( 7,4,5 ) \}\)
• B) \(\{ ( 7,5,4 ) \}\)
• C) \(\{ ( - 7,4,14 ) \}\)
• D) \(\{ ( 14,4 , - 7 ) \}\)