Respuesta :

Answer:

v = -1

Step-by-step explanation:

-4 (-3 + 7v) = -7v + 33

12 -28v = -7v + 33

-12 -12

-28v = -7v + 21

-28v + 7v = 21

-21v = 21

-21÷-21 = 21÷-21

v = -1