84=k(-12)

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Solution for 84=k(-12) equation: 



84=k(-12)

We move all terms to the left:

84-(k(-12))=0



We calculate terms in parentheses: -(k(-12)), so:

k(-12)

We multiply parentheses

-12k

Back to the equation:

-(-12k)



We get rid of parentheses

12k+84=0

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

12k=-84

k=-84/12

k=-7

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