84=-7(3x-6)

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Solution for 84=-7(3x-6) equation: 



84=-7(3x-6)

We move all terms to the left:

84-(-7(3x-6))=0



We calculate terms in parentheses: -(-7(3x-6)), so:

-7(3x-6)

We multiply parentheses

-21x+42

Back to the equation:

-(-21x+42)



We get rid of parentheses

21x-42+84=0

We add all the numbers together, and all the variables

21x+42=0

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

21x=-42

x=-42/21

x=-2

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