Respostas

2014-08-11T20:28:05-03:00
5x+3=x-2
5x-x=-2-3
4x= -5
x = -5/4
2014-08-11T20:29:00-03:00
5x+3=x-2
5x-x=-2-3
4x=-5
x=-5/4 ou -1,25