7z-1=13

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Solution for 7z-1=13 equation: 



7z-1=13

We move all terms to the left:

7z-1-(13)=0

We add all the numbers together, and all the variables

7z-14=0

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

7z=14

z=14/7

z=2

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