1/2n+12=21

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Solution for 1/2n+12=21 equation: 



1/2n+12=21

We move all terms to the left:

1/2n+12-(21)=0



Domain of the equation: 2n!=0

n!=0/2

n!=0

n∈R



We add all the numbers together, and all the variables

1/2n-9=0

We multiply all the terms by the denominator


-9*2n+1=0

Wy multiply elements

-18n+1=0

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

-18n=-1

n=-1/-18

n=1/18

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