$5x-2-x+8$
$-x+2\ge0$
$49\:14x\:x^2$
$3-\left(-2+11-\left(4-15-7\right)\right)-2+\left(-3-\left(5-26-1\right)+2\right)\:$
$\frac{x+05}{6x-x}$
$x^2+\frac{1}{2}<1$
$\frac{x^2+sin\left(x\right)}{cos\left(x\right)}$
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