$2x-5-3x+10$
$54-\left(21-38+\left(7-2\right)\cdot4\right)+5\cdot\left(27-4\cdot\left(15-4\cdot3\right)\right)\cdot4$
$x^3+y^3=8$
$\left(3y-6\right)^2$
$\left(+623\right)-\left(461\right)+\left(-374\right)$
$\lim_{x\to0}\frac{x-4}{\sqrt{x}-\sqrt{8-x}}$
$25.5=1+5p$
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