-8z=-z-7z

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Solution for -8z=-z-7z equation: 



-8z=-z-7z

We move all terms to the left:

-8z-(-z-7z)=0

We add all the numbers together, and all the variables

-8z-(-8z)=0

We get rid of parentheses

-8z+8z=0

We add all the numbers together, and all the variables

=0

z=0/1

z=0

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