8r=2.1

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Solution for 8r=2.1 equation: 



8r=2.1

We move all terms to the left:

8r-(2.1)=0

We add all the numbers together, and all the variables

8r-2.1=0

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

8r=2.1

r=2.1/8

r=1/3.8095238095238

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