Answer:
[tex] - \frac{1}{5} m - \frac{4}{5}[/tex]
Step-by-step explanation:
[tex] \frac{2}{5} m - \frac{4}{5} - \frac{3}{5} m \\ \\ = \frac{2}{5} m - \frac{3}{5} m - \frac{4}{5} \\ \\ = \frac{2 - 3}{5} m - \frac{4}{5} \\ \\ = - \frac{1}{5} m - \frac{4}{5} \\ [/tex]
