$-3+10-8-45+15$
$2z+9=z+1$
$\frac{1}{4}\ln\left(tan\left(1\right)+sec\left(1\right)\right)-\frac{1}{4}\left(\frac{1}{2}in\left(tan\left(1\right)+sec\left(1\right)\right)\right)$
$\sqrt{3^2+2^2}$
$4+3\ln\left(x\right)=19$
$-7x+5\ge-6-3x$
$3x^3-13x^2+2x+8$
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