-139=-7r-6(4-5r)

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Solution for -139=-7r-6(4-5r) equation: 



-139=-7r-6(4-5r)

We move all terms to the left:

-139-(-7r-6(4-5r))=0

We add all the numbers together, and all the variables

-(-7r-6(-5r+4))-139=0



We calculate terms in parentheses: -(-7r-6(-5r+4)), so:

-7r-6(-5r+4)

We multiply parentheses

-7r+30r-24

We add all the numbers together, and all the variables

23r-24

Back to the equation:

-(23r-24)



We get rid of parentheses

-23r+24-139=0

We add all the numbers together, and all the variables

-23r-115=0

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

-23r=115

r=115/-23

r=-5

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