105=-7(-x-7)

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Solution for 105=-7(-x-7) equation: 



105=-7(-x-7)

We move all terms to the left:

105-(-7(-x-7))=0

We add all the numbers together, and all the variables

-(-7(-1x-7))+105=0



We calculate terms in parentheses: -(-7(-1x-7)), so:

-7(-1x-7)

We multiply parentheses

7x+49

Back to the equation:

-(7x+49)



We get rid of parentheses

-7x-49+105=0

We add all the numbers together, and all the variables

-7x+56=0

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

-7x=-56

x=-56/-7

x=+8

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