18+6x-12=-4(2-x)=9x

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Solution for 18+6x-12=-4(2-x)=9x equation: 



18+6x-12=-4(2-x)=9x

We move all terms to the left:

18+6x-12-(-4(2-x))=0

We add all the numbers together, and all the variables

6x-(-4(-1x+2))+18-12=0

We add all the numbers together, and all the variables

6x-(-4(-1x+2))+6=0



We calculate terms in parentheses: -(-4(-1x+2)), so:

-4(-1x+2)

We multiply parentheses

4x-8

Back to the equation:

-(4x-8)



We get rid of parentheses

6x-4x+8+6=0

We add all the numbers together, and all the variables

2x+14=0

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

2x=-14

x=-14/2

x=-7

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