Respuesta :
the answer is -12. Because you subtract the 9 from 9 and 57 which equals 48. Then divide 48 by -4 is -12
9 - 4x = 57 |subtract 9 from both sides
-4x = 48 |divide both sides by (-4)
x = -12
-4x = 48 |divide both sides by (-4)
x = -12