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If the Replacement Set is the Set of Natural Numbers, Solve: 4x + 1 ≥ 17 - Mathematics

Sum

If the replacement set is the set of natural numbers, solve:   4x + 1 ≥ 17

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Solution

4x + 1 ≥ 17

⇒ 4x + 1 - 1 ≥ 17 - 1  (Subtracting)

⇒ 4x ≥ 16

⇒ `"4x"/4` ≥ `16/4` (Dividing by 4)

⇒ x ≥ 4

Required answer = {4, 5, 6, ...}

Concept: Replacement Set and Solution Set
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APPEARS IN

Selina Concise Mathematics Class 8 ICSE
Chapter 15 Linear Inequations
Exercise 15 (A) | Q 1.4 | Page 173
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