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(X-2)+X=113
We move all terms to the left:
(X-2)+X-(113)=0
We add all the numbers together, and all the variables
X+(X-2)-113=0
We get rid of parentheses
X+X-2-113=0
We add all the numbers together, and all the variables
2X-115=0
We move all terms containing X to the left, all other terms to the right
2X=115
X=115/2
X=57+1/2
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