-4=-(7+x)

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



-4=-(7+x)

We move all terms to the left:

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

We add all the numbers together, and all the variables

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



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

-(x+7)

We get rid of parentheses

-x-7

We add all the numbers together, and all the variables

-1x-7

Back to the equation:

-(-1x-7)



We get rid of parentheses

1x+7-4=0

We add all the numbers together, and all the variables

x+3=0

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

x=-3

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