Solve the System Using Gaussian Elimination or Gauss-Jordan Elimination $$\begin{array} { l } - 5 y = 24 - 3 x \\2 ( x - 4 y ) = 49 - y\end{array}$$

Multiple Choice

Solve the system using Gaussian elimination or Gauss-Jordan elimination.
- $$\begin{array} { l } - 5 y = 24 - 3 x \\2 ( x - 4 y ) = 49 - y\end{array}$$

A) $\{ ( 7,9 ) \}$
B) $\{ ( - 7 , - 9 ) \}$
C) $\{ ( 9,7 ) \}$
D) $\{ ( - 9 , - 7 ) \}$