-126=-6(-2r+7)

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Solution for -126=-6(-2r+7) equation: 



-126=-6(-2r+7)

We move all terms to the left:

-126-(-6(-2r+7))=0



We calculate terms in parentheses: -(-6(-2r+7)), so:

-6(-2r+7)

We multiply parentheses

12r-42

Back to the equation:

-(12r-42)



We get rid of parentheses

-12r+42-126=0

We add all the numbers together, and all the variables

-12r-84=0

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

-12r=84

r=84/-12

r=-7

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