Respuestas

2013-07-04T03:07:21+02:00
X+1/2 - x-3/3 =3
6(x+1/2 - x-3/3)=3.6  encontramos el LCM=6 y multiplicamos en ambos lados.
6* x+1/2 - 6 x-3/3 =18                          verificación 9+1/2 -6/3=3
    3(x+1) -2 (x-3) = 18                                             10/2 - 6/3=3
                x+9 = 18                                                   5-2=3
                x=18-9                                                        3=3
                 x=9