-9=-3(x-12)

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Solution for -9=-3(x-12) equation: 



-9=-3(x-12)

We move all terms to the left:

-9-(-3(x-12))=0



We calculate terms in parentheses: -(-3(x-12)), so:

-3(x-12)

We multiply parentheses

-3x+36

Back to the equation:

-(-3x+36)



We get rid of parentheses

3x-36-9=0

We add all the numbers together, and all the variables

3x-45=0

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

3x=45

x=45/3

x=15

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