Respostas

2014-03-26T23:21:33-03:00
Olá

 x + 3 x =96
 4x=96
  x=96/4
  x=24
3 4 3
2014-03-26T23:26:54-03:00
3x+x = 96
4x = 96
x = 96:4
x = 24
1 5 1