84=-7(-k-8)

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Solution for 84=-7(-k-8) equation: 



84=-7(-k-8)

We move all terms to the left:

84-(-7(-k-8))=0

We add all the numbers together, and all the variables

-(-7(-1k-8))+84=0



We calculate terms in parentheses: -(-7(-1k-8)), so:

-7(-1k-8)

We multiply parentheses

7k+56

Back to the equation:

-(7k+56)



We get rid of parentheses

-7k-56+84=0

We add all the numbers together, and all the variables

-7k+28=0

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

-7k=-28

k=-28/-7

k=+4

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