n+20n=7

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Solution for n+20n=7 equation: 



n+20n=7

We move all terms to the left:

n+20n-(7)=0

We add all the numbers together, and all the variables

21n-7=0

We move all terms containing n to the left, all other terms to the right

21n=7

n=7/21

n=1/3

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