-15=3x-3(4x-19)

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Solution for -15=3x-3(4x-19) equation: 



-15=3x-3(4x-19)

We move all terms to the left:

-15-(3x-3(4x-19))=0



We calculate terms in parentheses: -(3x-3(4x-19)), so:

3x-3(4x-19)

We multiply parentheses

3x-12x+57

We add all the numbers together, and all the variables

-9x+57

Back to the equation:

-(-9x+57)



We get rid of parentheses

9x-57-15=0

We add all the numbers together, and all the variables

9x-72=0

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

9x=72

x=72/9

x=8

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