12+3/7n=18

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Solution for 12+3/7n=18 equation: 



12+3/7n=18

We move all terms to the left:

12+3/7n-(18)=0



Domain of the equation: 7n!=0

n!=0/7

n!=0

n∈R



We add all the numbers together, and all the variables

3/7n-6=0

We multiply all the terms by the denominator


-6*7n+3=0

Wy multiply elements

-42n+3=0

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

-42n=-3

n=-3/-42

n=1/14

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