Respostas

2014-08-25T22:28:44-03:00
X+3 e 3x-4 | 2
x+3 e 3x-2 | 2
x+3 e 3x-1 | 3
x+1 e x-1  | x
1+ 1 e 1-1 |
2².3.x
4.3.x
=
12x
1 5 1