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0.7r-3.2=1.7
We move all terms to the left:
0.7r-3.2-(1.7)=0
We add all the numbers together, and all the variables
0.7r-4.9=0
We move all terms containing r to the left, all other terms to the right
0.7r=4.9
r=4.9/0.7
r=7+8.881784197E-16/0.7
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