-11+20=3(x+9)

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Solution for -11+20=3(x+9) equation: 



-11+20=3(x+9)

We move all terms to the left:

-11+20-(3(x+9))=0

We add all the numbers together, and all the variables

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



We calculate terms in parentheses: -(3(x+9)), so:

3(x+9)

We multiply parentheses

3x+27

Back to the equation:

-(3x+27)



We get rid of parentheses

-3x-27+9=0

We add all the numbers together, and all the variables

-3x-18=0

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

-3x=18

x=18/-3

x=-6

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