-z+4=z-8

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Solution for -z+4=z-8 equation: 



-z+4=z-8

We move all terms to the left:

-z+4-(z-8)=0

We add all the numbers together, and all the variables

-1z-(z-8)+4=0

We get rid of parentheses

-1z-z+8+4=0

We add all the numbers together, and all the variables

-2z+12=0

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

-2z=-12

z=-12/-2

z=+6

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