Respostas

2013-09-11T09:45:09-03:00
3 x > 2 - 9
x > -7/ 3
x > - 2,3333

resposta.... D
2013-09-11T10:13:18-03:00
3x+9>2
x>(2-9)/3
x > -7/3

x >-2,3...    Res. d) -2,5