$-5+x=-12$
$6xy-\frac{5}{2}x^{4}\right)^{2}$
$\sqrt[6]{2^3}$
$-4ab\:\cdot\:-2ab$
$4-6x\ge x-10$
$-30-\left(-16\right)$
$\frac{1+\cos x-\cos^2x}{\sin x}=\sin x+\cot x$
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