Respuesta :

Answer:

-9r +9.75

Step-by-step explanation:

- 12r + 8 + 3r + 1.75

Combine like terms

- 12r + 3r + 1.75 + 8

-9r +9.75

Answer: -9r+9.75

Step-by-step explanation:

combine like terms which gives you -12r+3r=9r, and 8+1.75=9.75

therefore, -9r+9.75