(X-1)+x+(x+1)=54

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Solution for (X-1)+x+(x+1)=54 equation: 



(X-1)+X+(X+1)=54

We move all terms to the left:

(X-1)+X+(X+1)-(54)=0

We add all the numbers together, and all the variables

X+(X-1)+(X+1)-54=0

We get rid of parentheses

X+X+X-1+1-54=0

We add all the numbers together, and all the variables

3X-54=0

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

3X=54

X=54/3

X=18

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