9(z-1)2=225

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Solution for 9(z-1)2=225 equation: 



9(z-1)2=225

We move all terms to the left:

9(z-1)2-(225)=0

We multiply parentheses

18z-18-225=0

We add all the numbers together, and all the variables

18z-243=0

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

18z=243

z=243/18

z=13+1/2

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