Respostas

2013-10-08T02:05:56-03:00
-4x-x=7-1-9+4
-3x=1 . (-1)
3x=-1
x=-1/3
2 3 2
obrigado
- 4x - x = - 5. corrige ai colega
-5x colega
  • Usuário do Brainly
2013-10-08T02:13:21-03:00
9 - 4x - 4 = x + 7 - 1
- 4x - x = 7 - 1 - 9 + 4
- 5x = 1 .(-1)
5x = - 1
x = - 1/5
1 5 1