$5senx\:+2=3senx+3$
$\left|2\right|-\left|9-15\right|$
$\frac{-6x+7}{-3}>\frac{8x-4}{2}$
$-8y^2+3y^2$
$-624+-44$
$a^2+2a+2$
$45+66+719$
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