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7k=2k-15.7k-2k
We move all terms to the left:
7k-(2k-15.7k-2k)=0
We add all the numbers together, and all the variables
7k-(-15.7k)=0
We get rid of parentheses
7k+15.7k=0
We add all the numbers together, and all the variables
22.7k=0
k=0/22.7
k=0
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