Respostas

2014-08-20T21:33:03-03:00
3x - 5 = - 5
3x = -5 + 5
3x = 0
x = 0/3
x = 0
2014-08-20T21:35:42-03:00
3x-5=-5
=> 3x=-5+5
=>3x=0
=>x=0/3
=>x=0