-5=0.25(4+20r)-8r=-5

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Solution for -5=0.25(4+20r)-8r=-5 equation: 



-5=0.25(4+20r)-8r=-5

We move all terms to the left:

-5-(0.25(4+20r)-8r)=0

We add all the numbers together, and all the variables

-(0.25(20r+4)-8r)-5=0



We calculate terms in parentheses: -(0.25(20r+4)-8r), so:

0.25(20r+4)-8r

We add all the numbers together, and all the variables

-8r+0.25(20r+4)

We multiply parentheses

-8r+5r+1

We add all the numbers together, and all the variables

-3r+1

Back to the equation:

-(-3r+1)



We get rid of parentheses

3r-1-5=0

We add all the numbers together, and all the variables

3r-6=0

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

3r=6

r=6/3

r=2

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