3
Answer: ASet 11: Linear Inequalities (Advanced)
Explanation
If , what is the solution?
A.
✓ Correct
B.
C.
D.
Detailed Explanation
Choice A is correct. Choice A is the correct answer. Variables on both sides require systematic collection. 1. Subtract 2 x: , giving 2. Subtract 8: 3. Divide by -5: (REVERSE!) Strategic Tip: Collect all variable terms on one side first, then isolate the variable. Choice B is incorrect because it fails to reverse when dividing by -5. Choice C is incorrect because it might come from adding 8 and 3 instead of proper solving. Choice D is incorrect because it combines wrong value and wrong direction.
Key Steps:
•
The correct answer is
Why others are wrong:
B: Choice B is incorrect and may result from a calculation error.
C: Choice C is incorrect and may result from a calculation error.
D: Choice D is incorrect and may result from a calculation error.
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