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2.8k-1=45
We move all terms to the left:
2.8k-1-(45)=0
We add all the numbers together, and all the variables
2.8k-46=0
We move all terms containing k to the left, all other terms to the right
2.8k=46
k=46/2.8
k=16+1/2.3333333333333
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