Respostas

2013-10-02T19:10:03-03:00
X/2 + x + 3x = 90

m.m.c (2)

x + 2x + 6x180
  2                  2

9x = 180
x = 180/9
x = 20
1 5 1
2013-10-02T19:36:05-03:00
X/2 + x + 3x = 90    MM c = 2
x  + 2x + 6x = 180
9x = 180
  x= 180/9
  x = 20