-61=-5(5r-4)

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Solution for -61=-5(5r-4) equation: 



-61=-5(5r-4)

We move all terms to the left:

-61-(-5(5r-4))=0



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

-5(5r-4)

We multiply parentheses

-25r+20

Back to the equation:

-(-25r+20)



We get rid of parentheses

25r-20-61=0

We add all the numbers together, and all the variables

25r-81=0

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

25r=81

r=81/25

r=3+6/25

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