Use the Gauss-Jordan Method to Solve the System of Equations $$\begin{array} { l } 3 x + y = 10 \\9 x + 4 y = 25\end{array}$$

question 190

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.
- $$\begin{array} { l } 3 x + y = 10 \\9 x + 4 y = 25\end{array}$$

• A) \(\{ ( 5 , - 5 ) \}\)
• B) \(\varnothing\)
• C) \(\{ ( - 5 , - 5 ) \}\)
• D) \(\{ ( - 5,5 ) \}\)

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