$14+3y+7-3x$
$2x\:-1\:\le\:-3$
$6x-8>x^2$
$y^2+11y+10=0$
$x+3^2-4$
$2sinx-1=cscx$
$5x^{3a}-10x^{a+2}+20x^{2a}$
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