-31=-7x-2(-7x-2)

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Solution for -31=-7x-2(-7x-2) equation: 



-31=-7x-2(-7x-2)

We move all terms to the left:

-31-(-7x-2(-7x-2))=0



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

-7x-2(-7x-2)

We multiply parentheses

-7x+14x+4

We add all the numbers together, and all the variables

7x+4

Back to the equation:

-(7x+4)



We get rid of parentheses

-7x-4-31=0

We add all the numbers together, and all the variables

-7x-35=0

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

-7x=35

x=35/-7

x=-5

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