-12r+8r=-12(1-2r)-11(r+2)

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Solution for -12r+8r=-12(1-2r)-11(r+2) equation: 



-12r+8r=-12(1-2r)-11(r+2)

We move all terms to the left:

-12r+8r-(-12(1-2r)-11(r+2))=0

We add all the numbers together, and all the variables

-12r+8r-(-12(-2r+1)-11(r+2))=0

We add all the numbers together, and all the variables

-4r-(-12(-2r+1)-11(r+2))=0



We calculate terms in parentheses: -(-12(-2r+1)-11(r+2)), so:

-12(-2r+1)-11(r+2)

We multiply parentheses

24r-11r-12-22

We add all the numbers together, and all the variables

13r-34

Back to the equation:

-(13r-34)



We get rid of parentheses

-4r-13r+34=0

We add all the numbers together, and all the variables

-17r+34=0

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

-17r=-34

r=-34/-17

r=+2

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