-20-4n=20-2n

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Solution for -20-4n=20-2n equation: 



-20-4n=20-2n

We move all terms to the left:

-20-4n-(20-2n)=0

We add all the numbers together, and all the variables

-4n-(-2n+20)-20=0

We get rid of parentheses

-4n+2n-20-20=0

We add all the numbers together, and all the variables

-2n-40=0

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

-2n=40

n=40/-2

n=-20

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