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-8=-2.0k
We move all terms to the left:
-8-(-2.0k)=0
We add all the numbers together, and all the variables
-(-2k)-8=0
We get rid of parentheses
2k-8=0
We move all terms containing k to the left, all other terms to the right
2k=8
k=8/2
k=4
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