7=k+8k

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Solution for 7=k+8k equation: 



7=k+8k

We move all terms to the left:

7-(k+8k)=0

We add all the numbers together, and all the variables

-(+9k)+7=0

We get rid of parentheses

-9k+7=0

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

-9k=-7

k=-7/-9

k=7/9

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