7+11=-2(-x-9)

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Solution for 7+11=-2(-x-9) equation: 



7+11=-2(-x-9)

We move all terms to the left:

7+11-(-2(-x-9))=0

We add all the numbers together, and all the variables

-(-2(-1x-9))+7+11=0

We add all the numbers together, and all the variables

-(-2(-1x-9))+18=0



We calculate terms in parentheses: -(-2(-1x-9)), so:

-2(-1x-9)

We multiply parentheses

2x+18

Back to the equation:

-(2x+18)



We get rid of parentheses

-2x-18+18=0

We add all the numbers together, and all the variables

-2x=0

x=0/-2

x=0

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