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-1.2r-5.3=1.9
We move all terms to the left:
-1.2r-5.3-(1.9)=0
We add all the numbers together, and all the variables
-1.2r-7.2=0
We move all terms containing r to the left, all other terms to the right
-1.2r=7.2
r=7.2/-1.2
r=-6+8.8817841970013E-16/1.2
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