1-n=9+3n

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Solution for 1-n=9+3n equation: 



1-n=9+3n

We move all terms to the left:

1-n-(9+3n)=0

We add all the numbers together, and all the variables

-n-(3n+9)+1=0

We add all the numbers together, and all the variables

-1n-(3n+9)+1=0

We get rid of parentheses

-1n-3n-9+1=0

We add all the numbers together, and all the variables

-4n-8=0

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

-4n=8

n=8/-4

n=-2

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