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8/7=k/7
We move all terms to the left:
8/7-(k/7)=0
We add all the numbers together, and all the variables
-(+k/7)+8/7=0
We get rid of parentheses
-k/7+8/7=0
We multiply all the terms by the denominator
-k+8=0
We add all the numbers together, and all the variables
-1k+8=0
We move all terms containing k to the left, all other terms to the right
-k=-8
k=-8/-1
k=+8
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