-57=-6(4+5r)-3

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Solution for -57=-6(4+5r)-3 equation: 



-57=-6(4+5r)-3

We move all terms to the left:

-57-(-6(4+5r)-3)=0

We add all the numbers together, and all the variables

-(-6(5r+4)-3)-57=0



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

-6(5r+4)-3

We multiply parentheses

-30r-24-3

We add all the numbers together, and all the variables

-30r-27

Back to the equation:

-(-30r-27)



We get rid of parentheses

30r+27-57=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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