57-21(x-3)=63-15(2x-2)

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Solution for 57-21(x-3)=63-15(2x-2) equation: 



57-21(x-3)=63-15(2x-2)

We move all terms to the left:

57-21(x-3)-(63-15(2x-2))=0

We multiply parentheses

-21x-(63-15(2x-2))+63+57=0



We calculate terms in parentheses: -(63-15(2x-2)), so:

63-15(2x-2)

determiningTheFunctionDomain
-15(2x-2)+63

We multiply parentheses

-30x+30+63

We add all the numbers together, and all the variables

-30x+93

Back to the equation:

-(-30x+93)



We add all the numbers together, and all the variables

-21x-(-30x+93)+120=0

We get rid of parentheses

-21x+30x-93+120=0

We add all the numbers together, and all the variables

9x+27=0

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

9x=-27

x=-27/9

x=-3

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