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354.20=3.14r
We move all terms to the left:
354.20-(3.14r)=0
We add all the numbers together, and all the variables
-(+3.14r)+354.20=0
We add all the numbers together, and all the variables
-(+3.14r)+354.2=0
We get rid of parentheses
-3.14r+354.2=0
We move all terms containing r to the left, all other terms to the right
-3.14r=-354.2
r=-354.2/-3.14
r=112+2.52/3.14
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