1+7z=-9+9z-10

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Solution for 1+7z=-9+9z-10 equation: 



1+7z=-9+9z-10

We move all terms to the left:

1+7z-(-9+9z-10)=0

We add all the numbers together, and all the variables

7z-(9z-19)+1=0

We get rid of parentheses

7z-9z+19+1=0

We add all the numbers together, and all the variables

-2z+20=0

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

-2z=-20

z=-20/-2

z=+10

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