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9.1(k)=63.7
We move all terms to the left:
9.1(k)-(63.7)=0
We add all the numbers together, and all the variables
9.1k-63.7=0
We move all terms containing k to the left, all other terms to the right
9.1k=63.7
k=63.7/9.1
k=7+7.105427357601E-15/9.1
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