$x+1+x+1+x$
$2x-7x+6x-9x+12x+3x-5x$
$\left(7v^2-24v-16\right)$
$q^3r^{\text{4}}q^7r$
$\frac{\left(2x^2y\right)^{-1}}{\left(-2x^2y^3\right)^2}$
$4\left(x+5\right)-5\left(5x-3\right)\ge7\left(x-9\right)-6\left(x-9\right)$
$\:\frac{\left(4x^6\:y\right)}{\left(-2x^3\:y\right)}\:$
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