Respostas

2013-12-11T17:43:08-02:00
2x+3(x-6)=6x-3
2x+3x-18=6x-3
2x+3x-6x=-3+18
-x= 15
x= -15

3x-5=x-2
3x-x=-2+5
2x=3
x=3/2