Respuesta :

Answer:

9b+8n+4x+9

Hope that helps!

Answer:

(9b+7)+(4x-3)+(8n+5) = 9b + 8n + 4x + 9

Step-by-step explanation:

(9b+7)+(4x-3)+(8n+5)=?

= 9b + 7 + 4x - 3 + 8n + 5

= 9b + 8n + 4x + 9