Respostas

2014-07-12T23:17:49-03:00
-2 (-m + 2 ) = 3 ( 2m + 1 )
2m - 4 = 6m + 3
2m - 6m = 3 + 4
-4m = 7
-m = 7/4
m = -7/4
1 5 1