Respostas

  • Usuário do Brainly
2014-05-10T12:02:20-03:00
2 . (x + 1) - 3 . (2x - 5) = 6x - 3
2x + 2 - 6x + 15 = 6x - 3
2x - 6x - 6x = - 3 - 2 - 15
- 10x = - 20 . (- 1)
10x = 20
x = 20/10
x = 2
2014-05-10T12:03:38-03:00
2x+2-6x+15-6x+3=0
-10x+20=0
-10x=-20
x=-20/10
x=2