20-n=3(n+6)

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Solution for 20-n=3(n+6) equation: 



20-n=3(n+6)

We move all terms to the left:

20-n-(3(n+6))=0

We add all the numbers together, and all the variables

-1n-(3(n+6))+20=0



We calculate terms in parentheses: -(3(n+6)), so:

3(n+6)

We multiply parentheses

3n+18

Back to the equation:

-(3n+18)



We get rid of parentheses

-1n-3n-18+20=0

We add all the numbers together, and all the variables

-4n+2=0

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

-4n=-2

n=-2/-4

n=1/2

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