9z-2z=2z-5-4z

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Solution for 9z-2z=2z-5-4z equation: 



9z-2z=2z-5-4z

We move all terms to the left:

9z-2z-(2z-5-4z)=0

We add all the numbers together, and all the variables

9z-2z-(-2z-5)=0

We add all the numbers together, and all the variables

7z-(-2z-5)=0

We get rid of parentheses

7z+2z+5=0

We add all the numbers together, and all the variables

9z+5=0

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

9z=-5

z=-5/9

z=-5/9

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