9+11=-2(2x-10)

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Solution for 9+11=-2(2x-10) equation: 



9+11=-2(2x-10)

We move all terms to the left:

9+11-(-2(2x-10))=0

We add all the numbers together, and all the variables

-(-2(2x-10))+20=0



We calculate terms in parentheses: -(-2(2x-10)), so:

-2(2x-10)

We multiply parentheses

-4x+20

Back to the equation:

-(-4x+20)



We get rid of parentheses

4x-20+20=0

We add all the numbers together, and all the variables

4x=0

x=0/4

x=0

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