-9+9k=8k-9

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



-9+9k=8k-9

We move all terms to the left:

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

We get rid of parentheses

9k-8k+9-9=0

We add all the numbers together, and all the variables

k=0

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