Respostas

2014-05-12T18:04:59-03:00
X+1/3=1-x/2
2x+2=3-3x
2x+3x=3-2
5x=1
x=1/5
2014-05-12T18:07:49-03:00
x + 1 = 1 - x 
   3         2

2(x+1) = 3 (1 - x)
2x + 2 = 3 - 3x
2x + 3x = 3 - 2
5x = 1
x = 1
      5
1 5 1