$3x-2y+4z=1$
$sec\left(x\right)sec\left(x\right)$
$3x\ge x-2$
$\left(2x^6-9\right)\left(4x^{12}-18x^6+81\right)$
$-2+x=7$
$\left(4t-3\right)^3$
$-\frac{72}{-4}$
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