$\frac{x}{5}-7\le-9$
$x^3+y+3x^2y=y$
$\left(3x+2y+3\right)\left(5-4y\right)$
$sinh\left(t\right),\:\frac{e^t-e^{-t}}{2}$
$9x^2+32x$
$\frac{d}{dx}y=x^9$
$z^2-2z+1$
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