7k-7=42

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Solution for 7k-7=42 equation: 



7k-7=42

We move all terms to the left:

7k-7-(42)=0

We add all the numbers together, and all the variables

7k-49=0

We move all terms containing k to the left, all other terms to the right

7k=49

k=49/7

k=7

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