If $$\frac{6}{x + y} + \frac{15}{x - y} = 8$$ and $$\frac{10}{x + y} - \frac{9}{x - y} = 2$$ then 3x + 2y =

A

6

B

$$6\frac{1}{2}$$

C

7

D

$$7\frac{1}{2}$$