Respuesta :

chuity

Answer:

3b

Step-by-step explanation:

2x + 4 = b

3(2x+4) = 3b

6x + 12 = 3b

Answer:

3b

Step-by-step explanation:

(2x+4)*3=b*3

6x+12=3b

That is what i learned from school, hopes this helps