4=2(n-18)

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Solution for 4=2(n-18) equation: 



4=2(n-18)

We move all terms to the left:

4-(2(n-18))=0



We calculate terms in parentheses: -(2(n-18)), so:

2(n-18)

We multiply parentheses

2n-36

Back to the equation:

-(2n-36)



We get rid of parentheses

-2n+36+4=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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