9z+81=180

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Solution for 9z+81=180 equation: 



9z+81=180

We move all terms to the left:

9z+81-(180)=0

We add all the numbers together, and all the variables

9z-99=0

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

9z=99

z=99/9

z=11

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