z-8z=9z-7-z

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Solution for z-8z=9z-7-z equation: 



z-8z=9z-7-z

We move all terms to the left:

z-8z-(9z-7-z)=0

We add all the numbers together, and all the variables

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

We add all the numbers together, and all the variables

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

We get rid of parentheses

-7z-8z+7=0

We add all the numbers together, and all the variables

-15z+7=0

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

-15z=-7

z=-7/-15

z=7/15

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