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Question Number 27977 by NECx last updated on 18/Jan/18

$$\mid 2x+1\mid ⩽2$$

Answered by Rasheed.Sindhi last updated on 18/Jan/18

$$\mid 2\mathrm{x}+1\mid ⩽2$$$$\pm (2\mathrm{x}+1)⩽2$$$$2\mathrm{x}+1⩽2\wedge -2\mathrm{x}-1⩽2$$$$\mathrm{x}⩽\frac{1}{2}\wedge \mathrm{x}⩾-\frac{3}{2}$$$$-\frac{3}{2}⩽\mathrm{x}⩽\frac{1}{2}$$

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