Respostas

2013-09-14T09:52:25-03:00
6x = 2x + 16
6x -2x = 16
4x= 16
x = 4

Abs
2013-09-14T10:04:54-03:00
6x-2x=16
4x=16
x=16 sob 4= 4
x=4