Respostas

  • Usuário do Brainly
2013-11-06T20:46:16-02:00
 3-(3x-6)=2x+(4-x)
-9x+18=2x+4-x
-9x+x=-18+4 (-1)
9x-x=18-4
8x=14
x=14/8
x=7/2
2013-11-06T20:54:27-02:00
3 - 3x + 6 = 2x + 4 - x 
9 - 3x = x + 4 
9 - 4 = x + 3x 
4x = 5 
x = 5/4 
1 5 1