-1-9k=-k+7-9k

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Solution for -1-9k=-k+7-9k equation: 



-1-9k=-k+7-9k

We move all terms to the left:

-1-9k-(-k+7-9k)=0

We add all the numbers together, and all the variables

-9k-(-10k+7)-1=0

We get rid of parentheses

-9k+10k-7-1=0

We add all the numbers together, and all the variables

k-8=0

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

k=8

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