84=-7(x-7)-7

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



84=-7(x-7)-7

We move all terms to the left:

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



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

-7(x-7)-7

We multiply parentheses

-7x+49-7

We add all the numbers together, and all the variables

-7x+42

Back to the equation:

-(-7x+42)



We get rid of parentheses

7x-42+84=0

We add all the numbers together, and all the variables

7x+42=0

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

7x=-42

x=-42/7

x=-6

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