$\frac{4x}{3}+5=9$
$2^3-\:2\:+6$
$\frac{pq^{-5}r^{-5}}{5u^2v^{-3}}$
$\frac{x-1}{x+3}.\frac{x^2+4x+3}{x^2-1}$
$\sin\left(\frac{\pi}{3}+x\right)-\cos\left(\frac{\pi}{6}+x\right)$
$\frac{\csc\infty-1}{\csc\infty+1}=\frac{1-\sin\infty}{1+\sin\infty}$
$9m+12$
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