$\frac{-3x+4}{2}>-5$
$\frac{1}{1-cosx}=csc^2x\left(1+cosx\right)$
$-\left(10-40\right)+\left(-90\right)$
$\left(x^2+\frac{1}{x^2}-2\right)$
$3\left(3\right)^3+1$
$\frac{x+5}{2}=\frac{2x+3}{3}$
$-4a+8b-2a+6b-a-4b+12a+13$
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