Add or Subtract as Indicated $$\frac { 5 } { x - 7 } + \frac { 4 } { 7 - x }$$

Multiple Choice

Add or subtract as indicated. Simplify the result, if possible.
- $$\frac { 5 } { x - 7 } + \frac { 4 } { 7 - x }$$

A) $- \frac { 1 } { x - 7 }$
B) $\frac { 1 } { x - 7 }$
C) $\frac { 9 } { x - 7 }$
D) $- \frac { 1 } { 7 - x }$