Question

conjunto solução da equação 9/x<12

Answer 1

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$\frac{9}{x} \ \textless \ 12 \\ \\ 12x\ \textless \ 9 \\ \\ x\ \textless \ \frac{9}{12} \\ \\ simplificando \\ \\ x\ \textless \ \frac{3}{4} \\ \\ S=\{x\in R/x\ \textless \ \frac{3}{4} \}$

Answer 2

$\frac{9}{x} \ \textgreater \ 12 \\ \\ MMC = x \\ \\ 9 \ \textgreater \ 12x \\ \\ x \ \textless \ \frac{9}{12} \\ \\ simplifica~por~3 \\ \\ x \ \textless \ \frac{3}{4}$