9r-12=-6(1-4r)-3(5r-5)

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Solution for 9r-12=-6(1-4r)-3(5r-5) equation: 



9r-12=-6(1-4r)-3(5r-5)

We move all terms to the left:

9r-12-(-6(1-4r)-3(5r-5))=0

We add all the numbers together, and all the variables

9r-(-6(-4r+1)-3(5r-5))-12=0



We calculate terms in parentheses: -(-6(-4r+1)-3(5r-5)), so:

-6(-4r+1)-3(5r-5)

We multiply parentheses

24r-15r-6+15

We add all the numbers together, and all the variables

9r+9

Back to the equation:

-(9r+9)



We get rid of parentheses

9r-9r-9-12=0

We add all the numbers together, and all the variables

-21!=0

There is no solution for this equation

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