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-18.6=r/5.2
We move all terms to the left:
-18.6-(r/5.2)=0
We add all the numbers together, and all the variables
-(+r/5.2)-18.6=0
We get rid of parentheses
-r/5.2-18.6=0
We multiply all the terms by the denominator
-r-(18.6)*5.2=0
We add all the numbers together, and all the variables
-1r-96.72=0
We move all terms containing r to the left, all other terms to the right
-r=96.72
r=96.72/-1
r=-96+0.72/1
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