$2a\:+\:3\:+\:4a\:+\:5$
$4-2x<15$
$\ln\left(p^2-7\right)=\ln\left(4p-2\right)$
$-\sin\left(2x\right)=\frac{-2\cot\left(x\right)}{1+\cot^2\left(x\right)}$
$3-6\cdot2$
$4+w^2+5+w^2$
$\left(y-7\right)\left(y-5\right)$
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