-123=r-4(6r+2)

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Solution for -123=r-4(6r+2) equation: 



-123=r-4(6r+2)

We move all terms to the left:

-123-(r-4(6r+2))=0



We calculate terms in parentheses: -(r-4(6r+2)), so:

r-4(6r+2)

We multiply parentheses

r-24r-8

We add all the numbers together, and all the variables

-23r-8

Back to the equation:

-(-23r-8)



We get rid of parentheses

23r+8-123=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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