9
algebraIf , what is the solution?
A
B
C
D
Correct Answer: A
Choice A is the correct answer. Clear fractions first, then solve the resulting inequality.
- Multiply by 3: , giving
- Add 10:
- Divide by 5:
?�� Strategic Tip: Multiplying both sides by the denominator (when positive) eliminates fractions without changing inequality direction.
Choice B is incorrect because it reverses the inequality without justification. Choice C is incorrect because it might come from adding 10 and 15 to get 25, then dividing by something other than 5. Choice D is incorrect because it combines wrong value (7) with wrong direction.