Respuesta :

Answer:  21x+14  (choice A)

Explanation:

Use the distribution rule to multiply the outer 7 by each term inside

  • 7 times 3x = 21x
  • 7 times 2 = 14

We go from 7(3x+2) to 21x+14
Answer= 21x+14
7(3x)+ 7(2)= 21x+14

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