63=9(k-84)

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Solution for 63=9(k-84) equation: 



63=9(k-84)

We move all terms to the left:

63-(9(k-84))=0



We calculate terms in parentheses: -(9(k-84)), so:

9(k-84)

We multiply parentheses

9k-756

Back to the equation:

-(9k-756)



We get rid of parentheses

-9k+756+63=0

We add all the numbers together, and all the variables

-9k+819=0

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

-9k=-819

k=-819/-9

k=+91

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