Respuesta :

Answer:

12x + 15y + 18

Step-by-step explanation:

3 x 4x = 12x

3 x 5y = 15y

3 x 6 = 18

12x + 15y + 18

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Answer:

12x +15y+18

Step-by-step explanation:

3(4x + 5y + 6)

3*4x + 3*5y+3*6

12x +15y+18