Respuesta :

Answer:

D. 7r+4

Step-by-step explanation:

4(r+1) + 3r

4r+4+3r

7r+4

Answer: 7r+4

Step-by-step explanation

distribuite 4 through the parentheses --->4r+4+3r

collect like terms --> 7r+4

solution 7r+4