$32 + x = - 83$
$\int\frac{7+x}{7x+\frac{1}{2}x^2}dx$
$9x^2m^2-36z^4$
$\int\frac{1}{1-\frac{3}{4}.\sin^2\left(2x\right)}dx$
$3\:cos\left(a\right)-1=0$
$0.95\left(x\right)=0.9\left(x+16.3\right)$
$\left(a^{-5}+b^4\right)\left(a^{-3}-8b^4\right)$
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