-z-4=-20

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Solution for -z-4=-20 equation: 



-z-4=-20

We move all terms to the left:

-z-4-(-20)=0

We add all the numbers together, and all the variables

-1z+16=0

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

-z=-16

z=-16/-1

z=+16

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