Respostas

  • Usuário do Brainly
2013-10-13T18:22:06-03:00
3x - 11x = - 9 + 15
- 8x = 6 .(-1)
8x = - 6 (simplifique por 2)
4x = - 3
x = -3/4
2013-10-13T18:22:27-03:00
-15 +9 = -3x +11x
-6= 8x
X =- 6/8 = -3/4