Posted by Alyssa on Wednesday, August 8, 2012 at 3:55pm.
-4k-8k+7=-53 First, combine like terms. -12k + 7 = -53 Subtract 7 from both sides. -12k = -53 -7 -12k = -60 Divide both sides by - 12 k = -60/-12 k = 5
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