12z-9z=3

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Solution for 12z-9z=3 equation: 



12z-9z=3

We move all terms to the left:

12z-9z-(3)=0

We add all the numbers together, and all the variables

3z-3=0

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

3z=3

z=3/3

z=1

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