$34-\:4y\:=\:14$
$\left[7-\left(8+\left(4-16\right)\right)-\left(9+\left(-17+11\right)\right)-2\right]$
$\to\frac{1}{6x^{-\frac{3}{2}}}$
$\:8\:x\:-\:12\:y\:+\:32$
$-x^2+13x+12$
$cos\:2x\:-\:3\:sen\:x\:+\:1\:=\:0$
$-98\:-\:\left(-46\right)$
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