Respostas

2014-09-03T23:10:44-03:00
1 + 3x = 16

3x = 16 - 1

3x = 15

x = 15/3

x = 5



2014-09-03T23:12:32-03:00
Sim
1+3x= 16
3x=16 - 1
3x =15
x =15 / 3
x=5