$12+\left(-32\right)-\left(-175\right)+61-45+\left(-92\right)+84$
$-12+11-9-9-15$
$\left(5m^{2x}-10n^{10a}\right)^3$
$\lim_{x\to0}\left(\frac{\ln\left(x\right)}{\ln\left(x\right)-x+1}\right)$
$\left(-\:8\right)\:.\:3\::\:\left(-\:6\right)$
$10mn\frac{7x}{3}-1$
$7-3x<2-4x$
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