6x-9=3(3+x)

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Solution for 6x-9=3(3+x) equation: 



6x-9=3(3+x)

We move all terms to the left:

6x-9-(3(3+x))=0

We add all the numbers together, and all the variables

6x-(3(x+3))-9=0



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

3(x+3)

We multiply parentheses

3x+9

Back to the equation:

-(3x+9)



We get rid of parentheses

6x-3x-9-9=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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