$\frac{2x-3}{x^3+10x}$
$\frac{x+4}{7}=-3$
$14r\:+\:14\:-\:r\:-\:6$
$1-cot^2x-csc^2x$
$25x^2-40x+400$
$\frac{x-4x+3}{x-1}$
$2\left(x-1\right)-3x>3x-2$
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