Respostas

2014-07-20T13:35:15-03:00
- (3x - 4) + 5 (x - 3) < 6 
- 3x - 4 + 5x - 15 < 6
- 3x - 4 + 5x - 15 - 6 < 0
- 3x + 5x - 4 - 15 - 6 < 0
2x - 19 - 6 < 0 
2x - 25 < 0
2x > 25
x > 25 / 2

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