Respostas

2013-11-18T15:31:05-02:00
2 ( 3x - 1 ) - ( 2 - 4x ) = 5 ( x - 4 )
6x - 2 - 2 + 4x = 5x - 20
6x - 5x + 4 -20=0
x =-16
  • Usuário do Brainly
2013-11-18T16:38:08-02:00
2 ( 3x - 1 ) - ( 2 - 4x ) = 5 ( x - 4 )
6x-2-2x=5x-20
6x-2x-5x=-20+2
-x=-18   .(-1)
x=18