-84=-4(2x+7)

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



-84=-4(2x+7)

We move all terms to the left:

-84-(-4(2x+7))=0



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

-4(2x+7)

We multiply parentheses

-8x-28

Back to the equation:

-(-8x-28)



We get rid of parentheses

8x+28-84=0

We add all the numbers together, and all the variables

8x-56=0

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

8x=56

x=56/8

x=7

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