$15-\left(-7\right)+1$
$-3\left(10d+10\right)+5\left(d+2\right)$
$\left(\frac{1}{b}\right)^{5\:}.\left(\frac{1}{b}\right)^2.\left(\frac{1}{b}\right)^{-3}$
$\lim_{x\to\infty}\left(\frac{2x+1}{2x-1}\right)^{4x}$
$7x^2+14=861$
$3x+11>-1$
$x^6+y^9$
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