-4+8k=9k

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Solution for -4+8k=9k equation: 



-4+8k=9k

We move all terms to the left:

-4+8k-(9k)=0

We add all the numbers together, and all the variables

-1k-4=0

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

-k=4

k=4/-1

k=-4

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