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3.7=r/5.4
We move all terms to the left:
3.7-(r/5.4)=0
We add all the numbers together, and all the variables
-(+r/5.4)+3.7=0
We get rid of parentheses
-r/5.4+3.7=0
We multiply all the terms by the denominator
-r+(3.7)*5.4=0
We add all the numbers together, and all the variables
-1r+19.98=0
We move all terms containing r to the left, all other terms to the right
-r=-19.98
r=-19.98/-1
r=19+0.98/1
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