7z-8z=68-75

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Solution for 7z-8z=68-75 equation: 



7z-8z=68-75

We move all terms to the left:

7z-8z-(68-75)=0

We add all the numbers together, and all the variables

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

We add all the numbers together, and all the variables

-1z+7=0

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

-z=-7

z=-7/-1

z=+7

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