Respuesta :

pavani2002

Answer:

16=2b+4

12=2b

b=6

.............

Answer:

b = 6

Step-by-step explanation:

16 + 5b = 7b + 4     <-- Subtract 5b from the left

16 = 2b + 4     <-- Subtract 4 from the right

12 = 2b     <-- Divide by 2

b = 6