Respuesta :

Answer:

-5f+6

Step-by-step explanation:

-4f-f = -5f

15-9= 6

Answer is -5f+6

Hope this helps!

Answer:

-5f + 6

Step-by-step explanation:

-4f - 9 - f + 15

( -4f + -f) + (-9 + 15)

-5f + 6