-15=-3(4x-7)

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Solution for -15=-3(4x-7) equation: 



-15=-3(4x-7)

We move all terms to the left:

-15-(-3(4x-7))=0



We calculate terms in parentheses: -(-3(4x-7)), so:

-3(4x-7)

We multiply parentheses

-12x+21

Back to the equation:

-(-12x+21)



We get rid of parentheses

12x-21-15=0

We add all the numbers together, and all the variables

12x-36=0

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

12x=36

x=36/12

x=3

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