Respostas

  • Usuário do Brainly
2013-10-20T18:20:07-02:00
3/5.x + 1/2 = 2/3
mmc de (5,2,3)
5,2,3/5
1,2,3/2
1,1,3/3
1,1,1

(5*2*3) = 30

18x/30 + 15/30 = 20/30
elimine os denominadores (30).
18x + 15 = 20
18x = 20 - 15
18x = 5
x = 5/18 (esse número).
2013-10-20T18:27:20-02:00
3x + 1  =                      mmc  = (  5,2,3= 30)
5     2     3
18x + 15 = 20
18x = 20 - 15
18 x = 5
  x = 5/18