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0.009r=0.765
We move all terms to the left:
0.009r-(0.765)=0
We add all the numbers together, and all the variables
0.009r-0.765=0
We move all terms containing r to the left, all other terms to the right
0.009r=0.765
r=0.765/0.009
r=85+1.11022302463E-16/0.009
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