$2\sin\left(7x\right)=1$
$x-15=-34$
$\frac{x^2}{4}+x+1$
$100a^{10}\:-\:60a^5b^4+\:9b^8$
$\lim_{x\to0}\left(\frac{5x^2}{e^{6x}}\right)$
$5.400-3.875$
$10\:.\:\left(5-5\right)$
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