-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

z+4=0

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

z=-4

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