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18-8k=3(2k-9)
We move all terms to the left:
18-8k-(3(2k-9))=0
We calculate terms in parentheses: -(3(2k-9)), so:We get rid of parentheses
3(2k-9)
We multiply parentheses
6k-27
Back to the equation:
-(6k-27)
-8k-6k+27+18=0
We add all the numbers together, and all the variables
-14k+45=0
We move all terms containing k to the left, all other terms to the right
-14k=-45
k=-45/-14
k=3+3/14
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