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

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



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

We move all terms to the left:

-11-(-7r-8(-r+1)-r)=0

We add all the numbers together, and all the variables

-(-7r-8(-1r+1)-r)-11=0



We calculate terms in parentheses: -(-7r-8(-1r+1)-r), so:

-7r-8(-1r+1)-r

We add all the numbers together, and all the variables

-8r-8(-1r+1)

We multiply parentheses

-8r+8r-8

We add all the numbers together, and all the variables

-8

Back to the equation:

-(-8)



We add all the numbers together, and all the variables

-3!=0

There is no solution for this equation

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