Respostas

2014-08-26T16:41:53-03:00
= X -  \frac{5}{4} < -2 + 3

= X -  \frac{5}{4} < 1

X < 1 +  \frac{5}{4}  

X <  \frac{4+5}{4}  

X <  \frac{9}{4}