20-n=4(2n-4)

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



20-n=4(2n-4)

We move all terms to the left:

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

We add all the numbers together, and all the variables

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



We calculate terms in parentheses: -(4(2n-4)), so:

4(2n-4)

We multiply parentheses

8n-16

Back to the equation:

-(8n-16)



We get rid of parentheses

-1n-8n+16+20=0

We add all the numbers together, and all the variables

-9n+36=0

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

-9n=-36

n=-36/-9

n=+4

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