9z-z=-1+3z-2-12

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Solution for 9z-z=-1+3z-2-12 equation: 



9z-z=-1+3z-2-12

We move all terms to the left:

9z-z-(-1+3z-2-12)=0

We add all the numbers together, and all the variables

9z-z-(3z-15)=0

We add all the numbers together, and all the variables

8z-(3z-15)=0

We get rid of parentheses

8z-3z+15=0

We add all the numbers together, and all the variables

5z+15=0

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

5z=-15

z=-15/5

z=-3

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