Respostas

2013-11-11T13:21:32-02:00
Mmc 3
3.2x+3.1/3=3.1
6x+1=3
6x=3-1
2x=6/2
x=3


espero ter ajudado... :-)
2013-11-11T14:00:23-02:00
2x+1/3=1
3(2x)+1=3(1)
6x=3-1
6x=2
x=2/6