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X in (-oo:+oo)
2*(X+1/2) = 3*(X-(2/3)) // - 3*(X-(2/3))
2*(X+1/2)-(3*(X-(2/3))) = 0
2*(X+1/2)-3*(X-2/3) = 0
2*(X+1/2)-3*(X-2/3) = 0
3-X = 0
3-X = 0
3-X = 0 // - 3
-X = -3 // * -1
X = 3
X = 3
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