-11=-7(8+5r)+5(r+3)

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Solution for -11=-7(8+5r)+5(r+3) equation: 



-11=-7(8+5r)+5(r+3)

We move all terms to the left:

-11-(-7(8+5r)+5(r+3))=0

We add all the numbers together, and all the variables

-(-7(5r+8)+5(r+3))-11=0



We calculate terms in parentheses: -(-7(5r+8)+5(r+3)), so:

-7(5r+8)+5(r+3)

We multiply parentheses

-35r+5r-56+15

We add all the numbers together, and all the variables

-30r-41

Back to the equation:

-(-30r-41)



We get rid of parentheses

30r+41-11=0

We add all the numbers together, and all the variables

30r+30=0

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

30r=-30

r=-30/30

r=-1

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