12=-6x-3(-3x+4)

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Solution for 12=-6x-3(-3x+4) equation: 



12=-6x-3(-3x+4)

We move all terms to the left:

12-(-6x-3(-3x+4))=0



We calculate terms in parentheses: -(-6x-3(-3x+4)), so:

-6x-3(-3x+4)

We multiply parentheses

-6x+9x-12

We add all the numbers together, and all the variables

3x-12

Back to the equation:

-(3x-12)



We get rid of parentheses

-3x+12+12=0

We add all the numbers together, and all the variables

-3x+24=0

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

-3x=-24

x=-24/-3

x=+8

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