\[- \frac{3x + 2y}{\text{xy}} + \frac{2y - 5x}{\text{xy}} =\]
\[= \frac{- 3x - 2y + 2y - 5x}{\text{xy}} =\]
\[= \frac{- 8x}{\text{xy}} = \frac{- 8}{y}\]