-30=k+12

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Solution for -30=k+12 equation: 



-30=k+12

We move all terms to the left:

-30-(k+12)=0

We get rid of parentheses

-k-12-30=0

We add all the numbers together, and all the variables

-1k-42=0

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

-k=42

k=42/-1

k=-42

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