7z=z+72

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Solution for 7z=z+72 equation: 



7z=z+72

We move all terms to the left:

7z-(z+72)=0

We get rid of parentheses

7z-z-72=0

We add all the numbers together, and all the variables

6z-72=0

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

6z=72

z=72/6

z=12

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