9=3(2x+1)

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Solution for 9=3(2x+1) equation: 



9=3(2x+1)

We move all terms to the left:

9-(3(2x+1))=0



We calculate terms in parentheses: -(3(2x+1)), so:

3(2x+1)

We multiply parentheses

6x+3

Back to the equation:

-(6x+3)



We get rid of parentheses

-6x-3+9=0

We add all the numbers together, and all the variables

-6x+6=0

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

-6x=-6

x=-6/-6

x=1

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