Respostas

2014-09-04T00:47:32-03:00
15 - { 2x [ 15 : ( 6 - 3 ) ] }

15 - { 2x [ 15 : 3 ] }

15 - { 2x + 3 }

25 - 2x - 3 = 0

- 2x = - 25 + 3

- 2x = - 22 . ( - 1 )

2x = 22

x = 22/2

x = 11

1 5 1
  • Usuário do Brainly
2014-09-04T02:24:10-03:00