8^2-20r+8=0

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Solution for 8^2-20r+8=0 equation: 



8^2-20r+8=0

We add all the numbers together, and all the variables

-20r+72=0

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

-20r=-72

r=-72/-20

r=3+3/5

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