Respostas

  • Usuário do Brainly
2014-02-21T20:42:31-03:00
X+x-4=17-2x+1
x+x+2x=17+4+1
4x=22
x=22/4
x=5,5
3 4 3
2014-02-21T20:43:49-03:00
x+x-4=17-2x+1
x + x + 2x = 17 + 1 + 4
4x = 22
x = 22 / 4  = 11/2

ou 

x = 5,5
3 5 3