Perform the Indicated Operation $$\frac { x } { x + 7 } + \frac { - 7 } { x + 7 }$$

Multiple Choice

Perform the indicated operation. Simplify if possible.
- $$\frac { x } { x + 7 } + \frac { - 7 } { x + 7 }$$

A) $\frac { - 7 x } { x ^ { 2 } + 14 x + 49 }$
B) $- 1$
C) $\frac { - 6 x } { x + 7 }$
D) $\frac { x - 7 } { x + 7 }$