Respostas

2013-09-20T10:58:54-03:00
6x = 2x + 16
6x - 2x = 16
4x = 16
x = 16/4
x = 4
2013-09-20T11:00:19-03:00
6x=2x+16
6x-2x=16
4x=16
x=16/4
x=4