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Solve the inequation: 3z – 5 ≤ z + 3 < 5z – 9, z ∈ R. Graph the solution set on the number line. - Mathematics

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Question

Solve the inequation:

3z – 5 ≤ z + 3 < 5z – 9, z ∈ R.

Graph the solution set on the number line.

Sum

Solution

3z – 5 ≤ z + 3 < 5z – 9

3z – 5 ≤ z + 3 and z + 3 < 5z – 9

2z ≤ 8 and 12 < 4z

z ≤ 4 and 3 < z

Since, z ∈ R

∴ Solution set = {3 < z ≤ 4, x ∈ R}

It can be represented on a number line as:

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Representation of Solution on the Number Line
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Chapter 4: Linear Inequations (In one variable) - Exercise 4 (B) [Page 50]

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Selina Mathematics [English] Class 10 ICSE
Chapter 4 Linear Inequations (In one variable)
Exercise 4 (B) | Q 30 | Page 50
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