Respuesta :

Answer:

a.

Step-by-step explanation:

[tex] \frac{n - 9}{2n - 5} + \frac{3n - 1}{2n - 5} [/tex]

Since the denomaitor is the same, just add straight across.

[tex] \frac{4n - 10}{2n - 5} [/tex]

The numerator can be factored.

The greater common factor is 2 so we have

[tex] \frac{2(2n - 5)}{2n - 5} [/tex]

Notice that the numerator and denomiator are the same.

This means they will divide out to 1 so we have

[tex]2[/tex]