dkririrjir dkririrjir
  • 10-03-2021
  • Mathematics
contestada

(3d + 9) + (4a+6)=
Ssdddd

Respuesta :

m5nchu
m5nchu m5nchu
  • 10-03-2021

Answer:

4a + 3d + 15

Step-by-step explanation:

Remove parentheses.

3d + 9 + 4a + 6  

Add 9 and 6.

3d + 4a + 15  

Reorder 3d and 4a.  

4a + 3d + 15

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