75-9z=3z-9

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Solution for 75-9z=3z-9 equation: 



75-9z=3z-9

We move all terms to the left:

75-9z-(3z-9)=0

We get rid of parentheses

-9z-3z+9+75=0

We add all the numbers together, and all the variables

-12z+84=0

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

-12z=-84

z=-84/-12

z=+7

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