7z+20=-10+10z

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Solution for 7z+20=-10+10z equation: 



7z+20=-10+10z

We move all terms to the left:

7z+20-(-10+10z)=0

We add all the numbers together, and all the variables

7z-(10z-10)+20=0

We get rid of parentheses

7z-10z+10+20=0

We add all the numbers together, and all the variables

-3z+30=0

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

-3z=-30

z=-30/-3

z=+10

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