9
algebra

If x+52>4\frac{x + 5}{2} > 4, what is the smallest integer value of xx?

A

33

B

44

C

55

D

66

Correct Answer: B

Choice B is the correct answer. Finding integer solutions requires solving first, then identifying appropriate values.

  1. Multiply by 2: 2x+52>242 \cdot \frac{x+5}{2} > 2 \cdot 4, giving x+5>8x + 5 > 8
  2. Subtract 5: x>3x > 3
  3. Integer interpretation: xx must be GREATER than 3, so smallest integer is 4

?�� Strategic Tip: For strict inequalities (>> or <<), the boundary value is excluded, so round to the next integer in the appropriate direction.

Choice A is incorrect becausex=3x = 3 is the boundary value and does NOT satisfy x>3x > 3 (strict inequality). Choice C is incorrect because while 5 satisfies the inequality, it's not the SMALLEST integer that does. Choice D is incorrect because 6 satisfies it but is larger than the smallest valid integer.