Respuesta :

Answer:

C. 12x - 7

Step-by-step explanation:

8 + 3(x - 5) + 9x

8 + 3x -15 + 9x

Re-ordering and adding like terms...

12x - 7

Answer:

8 + 3x - 15 + 9x

Group like terms

(+8 -15) (+3x + 9x)

12x -7

C