8z-7=8z-7

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



8z-7=8z-7

We move all terms to the left:

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

We get rid of parentheses

8z-8z+7-7=0

We add all the numbers together, and all the variables

=0

z=0/1

z=0

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