Use the Gauss-Jordan Method to Solve the System of Equations $$\begin{array} { l } 6 x + 4 y = - 4 \\5 x + 7 y = 4\end{array}$$

question 424

Multiple Choice

Use the Gauss-Jordan method to solve the system of equations. If the system has infinitely many solutions, give the solution with y arbitrary.
- $$\begin{array} { l } 6 x + 4 y = - 4 \\5 x + 7 y = 4\end{array}$$

• A) \(\{ ( 2 , - 2 ) \}\)
• B) \(\{ ( - 2,2 ) \}\)
• C) \(\varnothing\)
• D) \(\{ ( - 2 , - 2 ) \}\)

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