-84=4(2k-7)

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Solution for -84=4(2k-7) equation: 



-84=4(2k-7)

We move all terms to the left:

-84-(4(2k-7))=0



We calculate terms in parentheses: -(4(2k-7)), so:

4(2k-7)

We multiply parentheses

8k-28

Back to the equation:

-(8k-28)



We get rid of parentheses

-8k+28-84=0

We add all the numbers together, and all the variables

-8k-56=0

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

-8k=56

k=56/-8

k=-7

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