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22.41=5.09-2r
We move all terms to the left:
22.41-(5.09-2r)=0
We add all the numbers together, and all the variables
-(-2r+5.09)+22.41=0
We get rid of parentheses
2r-5.09+22.41=0
We add all the numbers together, and all the variables
2r+17.32=0
We move all terms containing r to the left, all other terms to the right
2r=-17.32
r=-17.32/2
r=-8+1/1.5151515151515
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