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0.35r=2.17
We move all terms to the left:
0.35r-(2.17)=0
We add all the numbers together, and all the variables
0.35r-2.17=0
We move all terms containing r to the left, all other terms to the right
0.35r=2.17
r=2.17/0.35
r=6+0.07/0.35
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