Respostas

2013-10-08T18:37:45-03:00
5x - 7 = 1 + x
    2       2            m.m.c. = 2

5x - 7 = 1 + 2x
   2          2

5x - 7 = 1 + 2x
5x - 2x = 1 + 7
3x = 8
x = 8/3
  • Usuário do Brainly
2013-10-08T20:59:11-03:00
(5x - 7)/2 = 1/2 + x
mmc de (2,2)
2,2/2
1,1

mmc = 2

1.(5x - 7) = 1 + 2x
5x - 7 = 1 + 2x
5x - 2x = 1 + 7
3x = 8
x = 8/3