(x-1)*2=81

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Solution for (x-1)*2=81 equation: 



(x-1)*2=81

We move all terms to the left:

(x-1)*2-(81)=0

We multiply parentheses

2x-2-81=0

We add all the numbers together, and all the variables

2x-83=0

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

2x=83

x=83/2

x=41+1/2

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