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 :-)