$\frac{6x+2}{3x-1}\le5$
$2+\cos^2\left(z\right)$
$25x^2+120x+144=0$
$2x+x+2x+x$
$4x+7+6x^3-1+3$
$3a+4b+5b+b$
$2\sin^2\left(y\right)-7\sin\left(y\right)=-3$
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