Respostas

2014-07-29T21:09:17-03:00
20x=20➡️➡️x=20/2➡️➡️x=1
  • Usuário do Brainly
2014-07-29T21:44:01-03:00
3x - 16 + 5x + 12x - 4
3x - 16 + 5x + 12x - 4 = 0
3x + 5x + 12x = 16 + 4
20x = 20
x = 20/20
x = 1