r+5.1=8.1

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Solution for r+5.1=8.1 equation: 



r+5.1=8.1

We move all terms to the left:

r+5.1-(8.1)=0

We add all the numbers together, and all the variables

r-3=0

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

r=3

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