$3x+7=x+3$
$\lim_{x\to x}\left(\frac{\sin2\left(x\right)}{x}\right)$
$3\left(4g+2m\right)$
$\left(d+8\right)\left(d+9\right)$
$\sqrt{4}\left[5-\left(6+2\right)\left(5\right)\right]-12$
$\left(-w\right)^{-\frac{2}{3}}$
$-100\::-10$
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