Solve by the Substitution Method $$\begin{array} { l } 6 x + 9 y = 114 \\4 x - 4 y = - 4\end{array}$$

Multiple Choice

Solve by the substitution method.
- $$\begin{array} { l } 6 x + 9 y = 114 \\4 x - 4 y = - 4\end{array}$$

A) No solution
B) $( 7,9 )$
C) $( 6,9 )$
D) $( 7,8 )$