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(k-1)/3=9
We move all terms to the left:
(k-1)/3-(9)=0
We multiply all the terms by the denominator
(k-1)-9*3=0
We add all the numbers together, and all the variables
(k-1)-27=0
We get rid of parentheses
k-1-27=0
We add all the numbers together, and all the variables
k-28=0
We move all terms containing k to the left, all other terms to the right
k=28
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