-123=3r-6(-3r+8)

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Solution for -123=3r-6(-3r+8) equation: 



-123=3r-6(-3r+8)

We move all terms to the left:

-123-(3r-6(-3r+8))=0



We calculate terms in parentheses: -(3r-6(-3r+8)), so:

3r-6(-3r+8)

We multiply parentheses

3r+18r-48

We add all the numbers together, and all the variables

21r-48

Back to the equation:

-(21r-48)



We get rid of parentheses

-21r+48-123=0

We add all the numbers together, and all the variables

-21r-75=0

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

-21r=75

r=75/-21

r=-3+4/7

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