$2\:\:-8\:\:16$
$7+5v-1+4v-10a+1$
$12\:-\:\left(8x\:-\:5\right)\:+\:3x\:-\:22\:-\:9x$
$3a+2b+c=-5$
$m3+4mn-7m^2$
$\left(-5-b\right)^{-\frac{2}{3}}=\frac{1}{\left(-5\text{-b}\right)^{\frac{2}{3}}}$
$3\sin^2z=4\cos^2z$
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