-30=8k+4k

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Solution for -30=8k+4k equation: 



-30=8k+4k

We move all terms to the left:

-30-(8k+4k)=0

We add all the numbers together, and all the variables

-(+12k)-30=0

We get rid of parentheses

-12k-30=0

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

-12k=30

k=30/-12

k=-2+1/2

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