Respuesta :

The correct answer is the second option, or 3d + 9

7d + 12 - 4d - 3

Combine like terms

3d + 9


Answer:

3d+9

Step-by-step explanation:

7d + 12 − 4d − 3 = 7d + 12 + − 4d + − 3

Combine Like Terms:

= 7d + 12 + − 4d + − 3

= (7d + − 4d) + (12 + − 3)

= 3d + 9


Hope this helps :-)