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

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



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

We move all terms to the left:

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

We get rid of parentheses

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



We calculate terms in parentheses: -((x-11)), so:

(x-11)

We get rid of parentheses

x-11

Back to the equation:

-(x-11)



We get rid of parentheses

3x-x+11+9=0

We add all the numbers together, and all the variables

2x+20=0

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

2x=-20

x=-20/2

x=-10

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