$\csc\left(y\right)=x$
$a+b=x\left(3y\right)$
$\frac{2x}{x-3}+3=\frac{6}{x-3}$
$x^3+x^2-10x+8$
$3x\:^3-2x\:^2+3x-5,\:x=-5$
$x^2+2xf+f^2$
$\lim_{x\to0}\left(\frac{2^x-2}{x^2-x}\right)$
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