Respostas

2013-09-22T23:22:00-03:00
2x -4= 17 -2x+1 --->
4x= 18 +4 --->
4x= 22 ---->
x=22/4
x=5,5
  • Usuário do Brainly
2013-09-23T00:34:57-03:00
X + x - 4 = 17 - 2x + 1
2x - 4 = 18 - 2x
2x + 2x = 4 + 18
4x = 22
x = 22/4
x= 5,5