Respostas

2014-02-23T14:28:06-03:00
3x-3/4+1-2x/3=2
mmc=12
9x-9+4-8x=24
x=29
1 2 1
2014-02-23T14:29:47-03:00
3x/4 -3/4 + 1/3 -2x/3=2 
9x - 9 + 4 - 8x=24
x - 5=24
x=29