Respuesta :

3 - (2x + 4) = 2(x - 4.5)
3 - 2x - 4 = 2x - 9
4x = 8
  x = 2
3 - 2x - 4 = 2x - 9
3 - 4 + 9 = 2x  + 2x
8 = 4x
 
 x = 2 Answer