-1-9k=-8k+7

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Solution for -1-9k=-8k+7 equation: 



-1-9k=-8k+7

We move all terms to the left:

-1-9k-(-8k+7)=0

We get rid of parentheses

-9k+8k-7-1=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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