Respostas

2014-06-07T19:13:03-03:00
\left\{x\in\mathbb{R}/-5<\frac{x+1}{2}\leq2\right\}

\frac{x+1}{2}>-5
x+1>(-5)*2
x+1>-10
x>-10-1
x>-11

\frac{x+1}{2}\leq2
x+1\leq2*2
x+1\leq4
x\leq4-1
x\leq3

x=]-11;3]
1 5 1
voce poderia eesponder a outra pergunta q eu fiz??
q outra?