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-10.3r=1.04
We move all terms to the left:
-10.3r-(1.04)=0
We add all the numbers together, and all the variables
-10.3r-1.04=0
We move all terms containing r to the left, all other terms to the right
-10.3r=1.04
r=1.04/-10.3
r=-1/9.9038461538462
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