7
Answer: ASet 8: Linear Equations (Advanced)
Explanation
Solve:
A.✓ Correct
10
B.
1000
C.
12
D.
100
Detailed Explanation
Choice A is correct. Choice C is the correct answer. 1. Start with the equation: 2. Subtract 10 from both sides: 3. Simplify: 4. Divide both sides by 10: 5. Simplify: 6. Verify: ✓ Choice D is incorrect because this results from adding 10 to 110: , then . Wrong inverse operation. Choice A is incorrect because this is the value of . You need to divide by 10. Choice C is incorrect because this results from multiplying 100 by 10: .
Key Steps:
•
The correct answer is 10
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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