8z-7=8z-z

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Solution for 8z-7=8z-z equation: 



8z-7=8z-z

We move all terms to the left:

8z-7-(8z-z)=0

We add all the numbers together, and all the variables

8z-(+7z)-7=0

We get rid of parentheses

8z-7z-7=0

We add all the numbers together, and all the variables

z-7=0

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

z=7

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