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-r+58.5=14.2
We move all terms to the left:
-r+58.5-(14.2)=0
We add all the numbers together, and all the variables
-1r+44.3=0
We move all terms containing r to the left, all other terms to the right
-r=-44.3
r=-44.3/-1
r=44+0.3/1
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