$-11\le1-3x$
$\frac{8x^4+6x^3-1}{2x^2}$
$x-3=-3+3x$
$-30+18-7+1-5\:-6+-7$
$2^3+4\cdot2^2-3\cdot2+2$
$\left(5y^3+2\right)^2$
$7p-21=4p+15$
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