Respuestas

2014-02-17T18:30:45+01:00
1 - 1 - (x/3) = x + (1/2)
- x/3 = x + 1/2
- x/3 - x = 1/2
-4/3 x = 1/2
x = (1/2) / (-4/3)
x = - 3/8