7z-9-2=10+4z

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Solution for 7z-9-2=10+4z equation: 



7z-9-2=10+4z

We move all terms to the left:

7z-9-2-(10+4z)=0

We add all the numbers together, and all the variables

7z-(4z+10)-9-2=0

We add all the numbers together, and all the variables

7z-(4z+10)-11=0

We get rid of parentheses

7z-4z-10-11=0

We add all the numbers together, and all the variables

3z-21=0

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

3z=21

z=21/3

z=7

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