$-\frac{5}{9}v-2\le\frac{7}{6}v+\frac{4}{9}$
$\cos\left(\theta\:\right)=\:\frac{8}{17}$
$\frac{3}{x^2+x+1}+\frac{5}{x+2}$
$33+2x=5x$
$\left(5xy\right)^2$
$x^2+1\le4x-3$
$-x+5y=16$
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