-(3x-9)=18

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Solution for -(3x-9)=18 equation: 



-(3x-9)=18

We move all terms to the left:

-(3x-9)-(18)=0

We get rid of parentheses

-3x+9-18=0

We add all the numbers together, and all the variables

-3x-9=0

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

-3x=9

x=9/-3

x=-3

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