$3x-4y+x+7y+z$
$\frac{\sin\left(x\right)+\cos\left(x\right)}{\sin\left(x\right)}-1=\frac{1}{\tan\left(x\right)}$
$\sqrt{-4^2-2\left(-4\right)-24}>-3$
$\frac{10b}{-30ab}$
$f\left(x\right)=x^3-6x^2+9x$
$\left(\frac{1}{3}a+3\right)^3$
$40-\left(-23\right)$
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