-a-4=-(2a+11)

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Solution for -a-4=-(2a+11) equation: 



-a-4=-(2a+11)

We move all terms to the left:

-a-4-(-(2a+11))=0

We add all the numbers together, and all the variables

-1a-(-(2a+11))-4=0



We calculate terms in parentheses: -(-(2a+11)), so:

-(2a+11)

We get rid of parentheses

-2a-11

Back to the equation:

-(-2a-11)



We get rid of parentheses

-1a+2a+11-4=0

We add all the numbers together, and all the variables

a+7=0

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

a=-7

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