Respostas

2013-11-13T16:55:00-02:00
 x + 1 . 2 - 1 = 2
       4       2    3

x + 2 - 1 =               mmc 4,2,3 = 12
      4   2    3
12x + 6 - 6 = 8
12x = 8 + 6 - 6
12x = 14 -6
 12x = 8
   x = 8/12
   x = 2
         3
      
2 5 2