Respuesta :

sarahporter64

Answer:

8+4b+9x+7d

Step-by-step explanation:

(9+4b) +(-3+9x) +(2+7d)

combine like terms 9-3+2=8

so, 8+4b+9x+7d

Answer:

4b+7d+9x+8

Step-by-step explanation:

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