Respostas

  • Usuário do Brainly
2014-09-01T23:44:55-03:00
2014-09-01T23:46:23-03:00
80 - 5x = 0

- 5x = - 80 . ( - 1 )

5x = 80

x = 80/5

x = 16

1 1 1