Respostas

2014-08-01T01:19:57-03:00
3x - 3 / 5 + 2x / 3 < 8

9 x - 9 + 10 x / 15 < 8

x - 9 < 8 * 15

x - 9 < 120

x < 120 - 9

x < 111