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n=5.20+3n
We move all terms to the left:
n-(5.20+3n)=0
We add all the numbers together, and all the variables
n-(3n+5.2)=0
We get rid of parentheses
n-3n-5.2=0
We add all the numbers together, and all the variables
-2n-5.2=0
We move all terms containing n to the left, all other terms to the right
-2n=5.2
n=5.2/-2
n=-2+1/1.6666666666667
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