Respostas

2013-11-10T18:09:52-02:00
3x-3=8-2x
3x+2x=8+3
5x=11
x=11/5
2013-11-10T18:11:03-02:00
3x-3= 8-2x 
3x+2x= 3+8=
5x=11  
x=11/5