-7=1-8z

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Solution for -7=1-8z equation: 



-7=1-8z

We move all terms to the left:

-7-(1-8z)=0

We add all the numbers together, and all the variables

-(-8z+1)-7=0

We get rid of parentheses

8z-1-7=0

We add all the numbers together, and all the variables

8z-8=0

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

8z=8

z=8/8

z=1

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