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Question

If xϵZ, solve the inequation 2+4x<2x53x. Also, represent its solution set on a number line.


A

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B

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C

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D

None of these

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Solution

The correct option is B


2+4x<2x53x2+4x<2x5 and 2x53x4x2x<52 and 5x2x<7 and 5xx<(72) and x 55x and x <(72)5x<(72)But,x ϵ Z.5x<(72) andx ϵ Zx=5,4

Hence, the solution set is [-5, -4 ]

The graphical representation of the solution set on a number line is as follows:


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