7z-2z-2z=12

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Solution for 7z-2z-2z=12 equation:



7z-2z-2z=12
We move all terms to the left:
7z-2z-2z-(12)=0
We add all the numbers together, and all the variables
3z-12=0
We move all terms containing z to the left, all other terms to the right
3z=12
z=12/3
z=4

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