$9x-3y+5+-x-y+4+-5x+4y-9$
$\left(2x+3y\right)dx+\left(y+3x\right)dy\:=\:0$
$-3\left(5s-4\right)-7$
$14-\left(25+50\right)+36$
$-7m-4>26m-94$
$\int\frac{sin\left(42x\right)}{1+cos^2\left(42x\right)}dx$
$3x\:+4>49$
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