2(x-1)-x=81

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



2(x-1)-x=81

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We multiply parentheses

-1x+2x-2-81=0

We add all the numbers together, and all the variables

x-83=0

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

x=83

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