18=-3(-x+3)

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Solution for 18=-3(-x+3) equation: 



18=-3(-x+3)

We move all terms to the left:

18-(-3(-x+3))=0

We add all the numbers together, and all the variables

-(-3(-1x+3))+18=0



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

-3(-1x+3)

We multiply parentheses

3x-9

Back to the equation:

-(3x-9)



We get rid of parentheses

-3x+9+18=0

We add all the numbers together, and all the variables

-3x+27=0

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

-3x=-27

x=-27/-3

x=+9

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