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If the replacement set = {- 6,. - 3, 0, 3, 6, 9}; find the truth set of the following : 2x - 1 > 9 - Mathematics

Sum

If the replacement set = {- 6,. - 3, 0, 3, 6, 9}; find the truth set of the following :  2x - 1 > 9

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Solution

2x – 1 > 9

⇒ 2x – 1 + 1 > 9 + 1 (Adding 1)

⇒ 2x > 10

⇒ x > 5 (Dividing by 2)

⇒ x > 5

Required answer = {6, 9}

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 2.1 | Page 173
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