5
algebra

Which inequality has NO solution?

A

x+5>x+3x + 5 > x + 3

B

2x+1<2x42x + 1 < 2x - 4

C

3x3x3x \geq 3x

D

x2x+1x - 2 \leq x + 1

Correct Answer: B

Choice B is the correct answer. Some inequalities lead to contradictions when simplified.

  1. Simplify: Subtract 2x2x from both sides: 2x2x+1<2x2x42x - 2x + 1 < 2x - 2x - 4
  2. Result: 1<41 < -4
  3. Contradiction: This is FALSE, so no value of xx satisfies this inequality

?�� Strategic Tip: When variables cancel and you're left with a false statement (like 1<41 < -4), the inequality has no solution.

Choice A is incorrect because subtracting xx gives 5>35 > 3, which is ALWAYS true (all real numbers are solutions). Choice C is incorrect because this simplifies to 000 \geq 0, which is true, so all real numbers work. Choice D is incorrect because subtracting xx gives 21-2 \leq 1, always true.