-84=-2(5k+2)

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Solution for -84=-2(5k+2) equation: 



-84=-2(5k+2)

We move all terms to the left:

-84-(-2(5k+2))=0



We calculate terms in parentheses: -(-2(5k+2)), so:

-2(5k+2)

We multiply parentheses

-10k-4

Back to the equation:

-(-10k-4)



We get rid of parentheses

10k+4-84=0

We add all the numbers together, and all the variables

10k-80=0

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

10k=80

k=80/10

k=8

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