-9(x-1)=-12(x-4)

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Solution for -9(x-1)=-12(x-4) equation: 



-9(x-1)=-12(x-4)

We move all terms to the left:

-9(x-1)-(-12(x-4))=0

We multiply parentheses

-9x-(-12(x-4))+9=0



We calculate terms in parentheses: -(-12(x-4)), so:

-12(x-4)

We multiply parentheses

-12x+48

Back to the equation:

-(-12x+48)



We get rid of parentheses

-9x+12x-48+9=0

We add all the numbers together, and all the variables

3x-39=0

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

3x=39

x=39/3

x=13

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