-17-17+7z=20-20z

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Solution for -17-17+7z=20-20z equation: 



-17-17+7z=20-20z

We move all terms to the left:

-17-17+7z-(20-20z)=0

We add all the numbers together, and all the variables

7z-(-20z+20)-17-17=0

We add all the numbers together, and all the variables

7z-(-20z+20)-34=0

We get rid of parentheses

7z+20z-20-34=0

We add all the numbers together, and all the variables

27z-54=0

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

27z=54

z=54/27

z=2

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