Respostas

2014-08-10T19:10:53-03:00
6m-7-2m-2 = 0
4m -9 = 0
4m = 9
m = 9/4
1 5 1
2014-08-10T19:12:13-03:00
6m-7-2m-2=0
-4m-9=0
-84m=9 (x-1)
4m=-9
m=-9/4

1 5 1