-z-9z=9z+9+4z

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Solution for -z-9z=9z+9+4z equation: 



-z-9z=9z+9+4z

We move all terms to the left:

-z-9z-(9z+9+4z)=0

We add all the numbers together, and all the variables

-z-9z-(13z+9)=0

We add all the numbers together, and all the variables

-10z-(13z+9)=0

We get rid of parentheses

-10z-13z-9=0

We add all the numbers together, and all the variables

-23z-9=0

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

-23z=9

z=9/-23

z=-9/23

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