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Linear Inequalities — MATHS STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceMATHSLinear Inequalities1 Mark
MCQ
If x < 7, then:
  • A
    $-\text{x}<-7$
  • B
    $-\text{x}\leq-7$
  • C
    $-\text{x}>-7$
  • D
    $-\text{x}\geq-7$
✓

Answer

  1. $-\text{x}>-7$

Solution:

x < 7

subtracting x on both sides, we get

⇒ x − x < 7 − x

⇒ 0 < 7 − x

subtracting 7 on both sides, we get

⇒ 0 − 7 < 7 − x − 7

⇒ −7 < − x

⇒ − x > −7

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