3z-z=9

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Solution for 3z-z=9 equation: 



3z-z=9

We move all terms to the left:

3z-z-(9)=0

We add all the numbers together, and all the variables

2z-9=0

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

2z=9

z=9/2

z=4+1/2

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