Respostas

2014-07-22T21:05:06-03:00
6x-9+2x+2 = 3x+18
6x+2x-3x = 18+9-2
5x = 25
x = 25/5
x = 5
1 4 1
6x-9+2x+2 = 3x+18
6x+2x-3x = 18+9-2
5x = 25
x = 25/5
x = 5
agora q eu vi ta igual