-1-2(-6r+1)=8r+3(r+3)

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Solution for -1-2(-6r+1)=8r+3(r+3) equation: 



-1-2(-6r+1)=8r+3(r+3)

We move all terms to the left:

-1-2(-6r+1)-(8r+3(r+3))=0

We multiply parentheses

12r-(8r+3(r+3))-2-1=0



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

8r+3(r+3)

We multiply parentheses

8r+3r+9

We add all the numbers together, and all the variables

11r+9

Back to the equation:

-(11r+9)



We add all the numbers together, and all the variables

12r-(11r+9)-3=0

We get rid of parentheses

12r-11r-9-3=0

We add all the numbers together, and all the variables

r-12=0

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

r=12

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