$22-\left(-7\right)+\left(-12\right)-19+13$
$-4\sin^2\left(x\right)+\sin\left(x\right)$
$3tan^2x-1=8$
$x^3\cdot\left(x^3+2x^2+x+1\right)^3$
$4x+2y+z=16$
$2+4b\ge-7$
$\frac{dr}{dt}=-16t+48$
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