x+3=-2(9-2x)

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Solution for x+3=-2(9-2x) equation: 



x+3=-2(9-2x)

We move all terms to the left:

x+3-(-2(9-2x))=0

We add all the numbers together, and all the variables

x-(-2(-2x+9))+3=0



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

-2(-2x+9)

We multiply parentheses

4x-18

Back to the equation:

-(4x-18)



We get rid of parentheses

x-4x+18+3=0

We add all the numbers together, and all the variables

-3x+21=0

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

-3x=-21

x=-21/-3

x=+7

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