Respostas

2014-02-05T19:14:54-02:00
4x+5=3x+1
4x-3x =1 -5
x=- 4
1 5 1
2014-02-05T19:16:48-02:00
4x+5=3x+1
4x-3x=1-5
x=-4   

1 5 1