2n-20=4(-n+1)

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Solution for 2n-20=4(-n+1) equation: 



2n-20=4(-n+1)

We move all terms to the left:

2n-20-(4(-n+1))=0

We add all the numbers together, and all the variables

2n-(4(-1n+1))-20=0



We calculate terms in parentheses: -(4(-1n+1)), so:

4(-1n+1)

We multiply parentheses

-4n+4

Back to the equation:

-(-4n+4)



We get rid of parentheses

2n+4n-4-20=0

We add all the numbers together, and all the variables

6n-24=0

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

6n=24

n=24/6

n=4

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