$\left(-200\right)\:-\:\left(-147\right)$
$-\:9\:+\:\left(-3-2\right)-\left(6-8\right)-\left(-7\right)$
$\frac{1}{2\pi}\int\left(\frac{1}{e^{3x}}\right)dx$
$12+5\cdot4-20$
$-19-\left(-45\right)$
$2-2x>0$
$\lim_{x\to0}\left(\frac{\sin^3\left(2x\right)\left(2x\right)}{2x^3}\right)$
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