126n-1=20

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Solution for 126n-1=20 equation: 



126n-1=20

We move all terms to the left:

126n-1-(20)=0

We add all the numbers together, and all the variables

126n-21=0

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

126n=21

n=21/126

n=1/6

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