Question

Do you add them both together or multiply or do u put an equal sign between them? 

Answer 1

$\frac{-x+7}{2x+4}+\frac{2x+5}{2x+4} =\frac{-x+7+2x+5}{2x+4}=\frac{ x+12}{2x+4}$

Answer 2

$\frac{-x+7}{2x+4} + \frac{2x+5}{2x+4}=\frac{x+12}{2x+4}$