9k+12=57

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Solution for 9k+12=57 equation: 



9k+12=57

We move all terms to the left:

9k+12-(57)=0

We add all the numbers together, and all the variables

9k-45=0

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

9k=45

k=45/9

k=5

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