2r-3.1=1.8

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Solution for 2r-3.1=1.8 equation: 



2r-3.1=1.8

We move all terms to the left:

2r-3.1-(1.8)=0

We add all the numbers together, and all the variables

2r-4.9=0

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

2r=4.9

r=4.9/2

r=2+0.9/2

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