3k+15=12k

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Solution for 3k+15=12k equation: 



3k+15=12k

We move all terms to the left:

3k+15-(12k)=0

We add all the numbers together, and all the variables

-9k+15=0

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

-9k=-15

k=-15/-9

k=1+2/3

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