$50x^2-32y^2$
$-10=m-12$
$25-\left(y-3\right)^2$
$2x>=2\left(x-1\right)$
$4+\frac{45}{\sin\left(\sec.45\right)}$
$5\left(3x-2\right)=65$
$-810-2\left[3-\left(6-7\right)\right]$
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