Question

Resolva, em R, as seguintes desigualdades:
$( \frac{1}{8} )x < ( \frac{1}{4} )x + 1$
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Answer 1

$(\frac{1}{8})x<(\frac{1}{4})x+1$

$\frac{x}{8}<\frac{x}{4}+1$

$\frac{x}{8}-\frac{x}{4}<1$

$\frac{x}{8}-\frac{2x}{8}<1$

$-\frac{x}{8}<1$

$\frac{x}{8}>-1$

$x>-1.8$

$x>-8$

$S=\{x\in R\ |\ x>-8\}$