3k+15=18k-30

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Solution for 3k+15=18k-30 equation: 



3k+15=18k-30

We move all terms to the left:

3k+15-(18k-30)=0

We get rid of parentheses

3k-18k+30+15=0

We add all the numbers together, and all the variables

-15k+45=0

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

-15k=-45

k=-45/-15

k=+3

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