Respostas

2014-05-08T08:37:45-03:00
4x -4 - 6x - 8 =6
4x - 6x = 6 + 4 + 8
- 2x = 18 
2x = - 18
x = - 9
1 5 1
2014-05-08T09:14:15-03:00
Resposta

4x - 4 -6x - 8 = 6
4x - 6x = 6 +4
-2x = 10
x = 10
      2
x = 5