-8z-13z+9z=12

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Solution for -8z-13z+9z=12 equation: 



-8z-13z+9z=12

We move all terms to the left:

-8z-13z+9z-(12)=0

We add all the numbers together, and all the variables

-12z-12=0

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

-12z=12

z=12/-12

z=-1

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