$[x-5]<x+2$
$14x-6$
$2x+18=3x$
$\sin\left(-\frac{12}{\frac{13}{2}}\right)+5\cos\left(-\frac{12}{\frac{13}{2}}\right)$
$2\left(12x-7-8a^2\right)$
$-\frac{42}{0}$
$125x^9-64y^{15}$
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