-52=2r+5(-r+5)

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Solution for -52=2r+5(-r+5) equation: 



-52=2r+5(-r+5)

We move all terms to the left:

-52-(2r+5(-r+5))=0

We add all the numbers together, and all the variables

-(2r+5(-1r+5))-52=0



We calculate terms in parentheses: -(2r+5(-1r+5)), so:

2r+5(-1r+5)

We multiply parentheses

2r-5r+25

We add all the numbers together, and all the variables

-3r+25

Back to the equation:

-(-3r+25)



We get rid of parentheses

3r-25-52=0

We add all the numbers together, and all the variables

3r-77=0

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

3r=77

r=77/3

r=25+2/3

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