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NCERT Class XI Mathematics - Linear Inequalities - Solutions
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Question : 12 of 65
Marks:
+1,
-0
≥
Solution:
The inequality is ≥ or , ≥ Multiplying both sides by 30, 3(3x + 20) ≥ 10(x – 6) or, 9x + 60 ≥ 10x – 60 Transposing 10x to L.H.S. and 60 to R.H.S., we get ∴ 9x – 10x ≥ – 60 – 60 or –x ≥ –120 Multiplying both sides by –1, we get x ≤ 120 ∴ The solution is (–∞, 120].
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