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-2.5r-32.7=79.1=74.1
We move all terms to the left:
-2.5r-32.7-(79.1)=0
We add all the numbers together, and all the variables
-2.5r-111.8=0
We move all terms containing r to the left, all other terms to the right
-2.5r=111.8
r=111.8/-2.5
r=-44+1/1.3888888888889
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