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0.1r-2=0.65
We move all terms to the left:
0.1r-2-(0.65)=0
We add all the numbers together, and all the variables
0.1r-2.65=0
We move all terms containing r to the left, all other terms to the right
0.1r=2.65
r=2.65/0.1
r=26+0.05/0.1
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