$-20+x+x^2=x^2+x-20$
$-\frac{112}{8}$
$5^y=e^{-x}\cos\left(\pi x\right)$
$22+7\cdot14$
$\frac{d}{dx}\left[cot\left(\frac{5\pi}{3}\right)\right]$
$3n\:+\:\left(-5\right)\:+\:\left(-4n\right)\:+\:\left(-3\right)$
$tan^{-1}\left(\frac{1}{y^2}\right)=x^3+c$
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