Solve the System by the Method of Your Choice $$\begin{array} { l } y = 22 - 9 x \\9 x + y = 49\end{array}$$

Multiple Choice

Solve the system by the method of your choice. Identify systems with no solution and systems with infinitely many solutions, using set notation to express their solution sets.
- $$\begin{array} { l } y = 22 - 9 x \\9 x + y = 49\end{array}$$

A) $\{ ( 16,13 ) \}$
B) $\{ ( 18,4 ) \}$
C) $\{ ( x , y ) \mid 9 x + y = 22 \}$
D) $\varnothing$