Respuesta :

Answer:

c

Step-by-step explanation:

9x-5x=4x

40-23=17

your answer is -4x-17

Answer: -4x-17 choice C

Step-by-step explanation

23-9x-40+5x

First group like terms together

23-40-9x+5x

Combine like terms

23-40=-17

-9x+5x=-4x

So then it is -17-4x or -4x-17

Choice C