$10-\frac{\left(-15\right)}{-5}$
$2^4x\:3\:+\sqrt{49}$
$\frac{x-2}{4}<2$
$\left(5x+1^2\right)$
$dy-cy-kdx$
$1^2\:-\:0^2$
$x^2+2x+1=64$
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