13-(4r-5)=5-(7+8r)

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Solution for 13-(4r-5)=5-(7+8r) equation: 



13-(4r-5)=5-(7+8r)

We move all terms to the left:

13-(4r-5)-(5-(7+8r))=0

We add all the numbers together, and all the variables

-(4r-5)-(5-(8r+7))+13=0

We get rid of parentheses

-4r-(5-(8r+7))+5+13=0



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

5-(8r+7)

determiningTheFunctionDomain
-(8r+7)+5

We get rid of parentheses

-8r-7+5

We add all the numbers together, and all the variables

-8r-2

Back to the equation:

-(-8r-2)



We add all the numbers together, and all the variables

-4r-(-8r-2)+18=0

We get rid of parentheses

-4r+8r+2+18=0

We add all the numbers together, and all the variables

4r+20=0

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

4r=-20

r=-20/4

r=-5

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