.25(4+20r)-8=-5

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Solution for .25(4+20r)-8=-5 equation: 



.25(4+20r)-8=-5

We move all terms to the left:

.25(4+20r)-8-(-5)=0

We add all the numbers together, and all the variables

.25(20r+4)-8-(-5)=0

We add all the numbers together, and all the variables

.25(20r+4)-3=0

We multiply parentheses

5r+1-3=0

We add all the numbers together, and all the variables

5r-2=0

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

5r=2

r=2/5

r=2/5

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