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7=5+k/8
We move all terms to the left:
7-(5+k/8)=0
We add all the numbers together, and all the variables
-(k/8+5)+7=0
We get rid of parentheses
-k/8-5+7=0
We multiply all the terms by the denominator
-k-5*8+7*8=0
We add all the numbers together, and all the variables
-1k+16=0
We move all terms containing k to the left, all other terms to the right
-k=-16
k=-16/-1
k=+16
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