(2h-9)2=9

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Solution for (2h-9)2=9 equation: 



(2h-9)2=9

We move all terms to the left:

(2h-9)2-(9)=0

We multiply parentheses

4h-18-9=0

We add all the numbers together, and all the variables

4h-27=0

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

4h=27

h=27/4

h=6+3/4

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