9=-3(-x+4)

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Solution for 9=-3(-x+4) equation: 



9=-3(-x+4)

We move all terms to the left:

9-(-3(-x+4))=0

We add all the numbers together, and all the variables

-(-3(-1x+4))+9=0



We calculate terms in parentheses: -(-3(-1x+4)), so:

-3(-1x+4)

We multiply parentheses

3x-12

Back to the equation:

-(3x-12)



We get rid of parentheses

-3x+12+9=0

We add all the numbers together, and all the variables

-3x+21=0

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

-3x=-21

x=-21/-3

x=+7

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