Respostas

2013-09-12T16:57:03-03:00
Basta daser 2x=-17+5
2x=-12
x=-12/2
X=-6
2013-09-12T17:38:42-03:00
5+3x=-1+4x
3x-4x=-1-5
-x=-6 (-1)
x=6