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8k-3=2k+39
We move all terms to the left:
8k-3-(2k+39)=0
We get rid of parentheses
8k-2k-39-3=0
We add all the numbers together, and all the variables
6k-42=0
We move all terms containing k to the left, all other terms to the right
6k=42
k=42/6
k=7
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