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current location:Mathematical operation > History of Inequality Computation > Answer
    Overview: 1 questions will be solved this time.Among them
           ☆1 inequalities

[ 1/1Inequality]
    Assignment:Find the solution set of inequality 2x     Question type: Inequality
    Solution:
    The inequality can be reduced to 3 inequalities:
        2 * x < x + 2         (1)
         x + 2 <5 * x / 4         (2)
        5 * x / 4 <2 / ( x + 1 )         (3)
        From the definition field of divisor
         x + 1 ≠ 0        (4 )

    From inequality(1):
         x < 2
    From inequality(2):
         x > 8
    From inequality(3):
         x < -1.860147 或  -1 < x < 0.860147
    From inequality(4):
         x < -1 或  x > -1

    From inequalities (1) and (2)
        x ∈ Φ (Φ is empty)that is, the inequality will never be estatlished within the real number range!    (5)
    From inequalities (3) and (5)
        x ∈ Φ (Φ is empty)that is, the inequality will never be estatlished within the real number range!    (6)
    From inequalities (4) and (6)
        x ∈ Φ (Φ is empty)that is, the inequality will never be estatlished within the real number range!    (7)

    The final solution set is :

        x ∈ Φ (Φ is empty)that is, the inequality will never be estatlished within the real number range!




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