Solve the Problem $$\left\{ \begin{array} { l } x + y = - 9 \\x - y = 19\end{array} \right.$$

Multiple Choice

Solve the problem.
- $$\left\{ \begin{array} { l } x + y = - 9 \\x - y = 19\end{array} \right.$$

A) $\{ ( 5 , - 14 ) \}$
B) $\{ ( 5,14 ) \}$
C) $\{ ( 9,5 ) \}$
D) $\{ ( 9 , - 14 ) \}$