57=3x-4(x-12)

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Solution for 57=3x-4(x-12) equation: 



57=3x-4(x-12)

We move all terms to the left:

57-(3x-4(x-12))=0



We calculate terms in parentheses: -(3x-4(x-12)), so:

3x-4(x-12)

We multiply parentheses

3x-4x+48

We add all the numbers together, and all the variables

-1x+48

Back to the equation:

-(-1x+48)



We get rid of parentheses

1x-48+57=0

We add all the numbers together, and all the variables

x+9=0

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

x=-9

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