Solve the System by Elimination $$\begin{array} { c } 7 x + 9 y = 19 \\- 5 x + 5 y = - 25\end{array}$$

Solve the system by elimination.
- $$\begin{array} { c } 7 x + 9 y = 19 \\- 5 x + 5 y = - 25\end{array}$$

A) $\varnothing$
B) $\{ ( 4,0 ) \}$
C) $\{ ( 4 , - 1 ) \}$
D) $\{ ( 3,0 ) \}$