-30+k=9.

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Solution for -30+k=9. equation: 



-30+k=9.

We move all terms to the left:

-30+k-(9.)=0

We add all the numbers together, and all the variables

k-30-9=0

We add all the numbers together, and all the variables

k-39=0

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

k=39

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