7z-z=-2+4z-1-1

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Solution for 7z-z=-2+4z-1-1 equation: 



7z-z=-2+4z-1-1

We move all terms to the left:

7z-z-(-2+4z-1-1)=0

We add all the numbers together, and all the variables

7z-z-(4z-4)=0

We add all the numbers together, and all the variables

6z-(4z-4)=0

We get rid of parentheses

6z-4z+4=0

We add all the numbers together, and all the variables

2z+4=0

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

2z=-4

z=-4/2

z=-2

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