9z-9=18

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Solution for 9z-9=18 equation: 



9z-9=18

We move all terms to the left:

9z-9-(18)=0

We add all the numbers together, and all the variables

9z-27=0

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

9z=27

z=27/9

z=3

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