4z-z=9

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Solution for 4z-z=9 equation:



4z-z=9
We move all terms to the left:
4z-z-(9)=0
We add all the numbers together, and all the variables
3z-9=0
We move all terms containing z to the left, all other terms to the right
3z=9
z=9/3
z=3

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