Respuesta :

6 + 7b - 7 = 5 + b
7b - 1 = 5 + b
7b = 5 + b + 1
7b = b + 6
7b - b = 6
6b = 6
b = 1

Answer: B)

Answer:

it's B, 1

i took the quiz attempt 1 and this was the answer