(n-9)2=36

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Solution for (n-9)2=36 equation: 



(n-9)2=36

We move all terms to the left:

(n-9)2-(36)=0

We multiply parentheses

2n-18-36=0

We add all the numbers together, and all the variables

2n-54=0

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

2n=54

n=54/2

n=27

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