12k+13=8k-9

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Solution for 12k+13=8k-9 equation: 



12k+13=8k-9

We move all terms to the left:

12k+13-(8k-9)=0

We get rid of parentheses

12k-8k+9+13=0

We add all the numbers together, and all the variables

4k+22=0

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

4k=-22

k=-22/4

k=-5+1/2

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