20=10(n+4)

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Solution for 20=10(n+4) equation: 



20=10(n+4)

We move all terms to the left:

20-(10(n+4))=0



We calculate terms in parentheses: -(10(n+4)), so:

10(n+4)

We multiply parentheses

10n+40

Back to the equation:

-(10n+40)



We get rid of parentheses

-10n-40+20=0

We add all the numbers together, and all the variables

-10n-20=0

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

-10n=20

n=20/-10

n=-2

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