-84=-4(1-4k)

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Solution for -84=-4(1-4k) equation: 



-84=-4(1-4k)

We move all terms to the left:

-84-(-4(1-4k))=0

We add all the numbers together, and all the variables

-(-4(-4k+1))-84=0



We calculate terms in parentheses: -(-4(-4k+1)), so:

-4(-4k+1)

We multiply parentheses

16k-4

Back to the equation:

-(16k-4)



We get rid of parentheses

-16k+4-84=0

We add all the numbers together, and all the variables

-16k-80=0

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

-16k=80

k=80/-16

k=-5

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