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Solve and Graph the Solution Set Of: 2x – 9 ≤ 7 and 3x + 9 > 25, X ∈ I - Mathematics

Solve and graph the solution set of:

2x – 9 ≤ 7 and 3x + 9 > 25, x ∈ I

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Solution

`2x - 9 <= 7 and 3x + 9 > 25`

`2x  <= 16  and 3x > 16`

`x <= 8 and x > 5 1/3`

`∴ Solution set = {5 1/3 < x <= 8, x in I} = {6, 7, 8}`

The required graph on number line is

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APPEARS IN

Selina Concise Maths Class 10 ICSE
Chapter 4 Linear Inequations (In one variable)
Exercise 4 (B) | Q 12.2 | Page 49
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