2(z-1)=18

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Solution for 2(z-1)=18 equation: 



2(z-1)=18

We move all terms to the left:

2(z-1)-(18)=0

We multiply parentheses

2z-2-18=0

We add all the numbers together, and all the variables

2z-20=0

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

2z=20

z=20/2

z=10

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