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

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



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

We move all terms to the left:

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

We add all the numbers together, and all the variables

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



We calculate terms in parentheses: -(3x+6(x+3)), so:

3x+6(x+3)

We multiply parentheses

3x+6x+18

We add all the numbers together, and all the variables

9x+18

Back to the equation:

-(9x+18)



We get rid of parentheses

-9x-18-3=0

We add all the numbers together, and all the variables

-9x-21=0

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

-9x=21

x=21/-9

x=-2+1/3

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