2z-1=-7

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Solution for 2z-1=-7 equation: 



2z-1=-7

We move all terms to the left:

2z-1-(-7)=0

We add all the numbers together, and all the variables

2z+6=0

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

2z=-6

z=-6/2

z=-3

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