-8r+12r=7(r-1)=11(r+7)

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Solution for -8r+12r=7(r-1)=11(r+7) equation: 



-8r+12r=7(r-1)=11(r+7)

We move all terms to the left:

-8r+12r-(7(r-1))=0

We add all the numbers together, and all the variables

4r-(7(r-1))=0



We calculate terms in parentheses: -(7(r-1)), so:

7(r-1)

We multiply parentheses

7r-7

Back to the equation:

-(7r-7)



We get rid of parentheses

4r-7r+7=0

We add all the numbers together, and all the variables

-3r+7=0

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

-3r=-7

r=-7/-3

r=2+1/3

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