12 - 8x ≤ 28 হলে-





A x ≤ - 2

B x ≤ 2

C x ≥ - 2

D x ≥ 2

Solution

Correct Answer: Option C

12 - 8x ≤ 28
⇒ 12 - (8x) - 12 ≤ 28 - 12 [উভয় পক্ষ থেকে 12 বিয়োগ করে]
⇒ - 8x ≤ 16
⇒ - 8x/(- 8) ≥ 16/(- 8) [উভয় পক্ষকে - 8 দ্বারা ভাগ করে]
⇒ x ≥ - 2

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