-18-9z=z-15+17

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Solution for -18-9z=z-15+17 equation: 



-18-9z=z-15+17

We move all terms to the left:

-18-9z-(z-15+17)=0

We add all the numbers together, and all the variables

-9z-(z+2)-18=0

We get rid of parentheses

-9z-z-2-18=0

We add all the numbers together, and all the variables

-10z-20=0

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

-10z=20

z=20/-10

z=-2

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