9z-3z=3z-3-7z

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Solution for 9z-3z=3z-3-7z equation: 



9z-3z=3z-3-7z

We move all terms to the left:

9z-3z-(3z-3-7z)=0

We add all the numbers together, and all the variables

9z-3z-(-4z-3)=0

We add all the numbers together, and all the variables

6z-(-4z-3)=0

We get rid of parentheses

6z+4z+3=0

We add all the numbers together, and all the variables

10z+3=0

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

10z=-3

z=-3/10

z=-3/10

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