$0.53n+n+0.68n$
$\frac{dx}{dy}+166.667x=0$
$y^2+4y+3$
$\frac{1}{4}z=-6$
$-4b^2-19b=-4b+10$
$2x^2-18x+16=4x^2-30x+26$
$\frac{\cos\left(a\right)}{\cos\left(a\right)}=\sin\left(a\right)$
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