Respuesta :

The answer for this is C.
3x / y - 4z = 12 ....add 4z to both sides
3x / y = 12 + 4z ..multiply both sides by y
3x = y(12 + 4z)
3x = 12y + 4yz...now divide both sides by 3
x = (12y + 4yz) / 3 <=== answer is B