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-12=4.7k=11.5
We move all terms to the left:
-12-(4.7k)=0
We add all the numbers together, and all the variables
-(+4.7k)-12=0
We get rid of parentheses
-4.7k-12=0
We move all terms containing k to the left, all other terms to the right
-4.7k=12
k=12/-4.7
k=-2+1/1.8076923076923
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