Respostas

  • 7up
  • Ambicioso
2014-05-04T22:44:46-03:00
2x-4=-x+5
2x+x=5+4
3x=9
x=9/3
x=3
2014-05-04T22:45:27-03:00
2x-4=-x+5
2x+x=5+4
3x=9
x=9/3
x=3