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-k/28=2
We move all terms to the left:
-k/28-(2)=0
We multiply all the terms by the denominator
-k-2*28=0
We add all the numbers together, and all the variables
-1k-56=0
We move all terms containing k to the left, all other terms to the right
-k=56
k=56/-1
k=-56
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