-z-20=9z+20+20

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Solution for -z-20=9z+20+20 equation: 



-z-20=9z+20+20

We move all terms to the left:

-z-20-(9z+20+20)=0

We add all the numbers together, and all the variables

-z-(9z+40)-20=0

We add all the numbers together, and all the variables

-1z-(9z+40)-20=0

We get rid of parentheses

-1z-9z-40-20=0

We add all the numbers together, and all the variables

-10z-60=0

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

-10z=60

z=60/-10

z=-6

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