$$-6(2k-2)\ge96$$
$k\leq -7$
$$2k-2\leq \frac{96}{-6}$$
$$2k-2\leq -16$$
$$2k\leq -16+2$$
$$2k\leq -14$$
$$k\leq \frac{-14}{2}$$
$$k\leq -7$$
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