7z=8z-4

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Solution for 7z=8z-4 equation: 



7z=8z-4

We move all terms to the left:

7z-(8z-4)=0

We get rid of parentheses

7z-8z+4=0

We add all the numbers together, and all the variables

-1z+4=0

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

-z=-4

z=-4/-1

z=+4

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