9k+9=13k-3

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Solution for 9k+9=13k-3 equation: 



9k+9=13k-3

We move all terms to the left:

9k+9-(13k-3)=0

We get rid of parentheses

9k-13k+3+9=0

We add all the numbers together, and all the variables

-4k+12=0

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

-4k=-12

k=-12/-4

k=+3

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