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27*3.14=3.14n
We move all terms to the left:
27*3.14-(3.14n)=0
We add all the numbers together, and all the variables
-(+3.14n)+27*3.14=0
We add all the numbers together, and all the variables
-(+3.14n)+84.78=0
We get rid of parentheses
-3.14n+84.78=0
We move all terms containing n to the left, all other terms to the right
-3.14n=-84.78
n=-84.78/-3.14
n=+27
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