18-42=3(x-2)-9

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Solution for 18-42=3(x-2)-9 equation: 



18-42=3(x-2)-9

We move all terms to the left:

18-42-(3(x-2)-9)=0

We add all the numbers together, and all the variables

-(3(x-2)-9)-24=0



We calculate terms in parentheses: -(3(x-2)-9), so:

3(x-2)-9

We multiply parentheses

3x-6-9

We add all the numbers together, and all the variables

3x-15

Back to the equation:

-(3x-15)



We get rid of parentheses

-3x+15-24=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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