Difficulty: Medium
Correct Answer: x to -, 2 and 3
Explanation:
Introduction / Context:
We need to turn a false equality into a true one by (i) changing one operator as indicated and (ii) interchanging a named pair of digits. Multi-edit puzzles like this demand precise sequencing and careful arithmetic.
Given Data / Assumptions:
Concept / Approach:
Apply the operator change first, then interchange the digits throughout the LHS. Finally, evaluate and compare against the RHS (0).
Step-by-Step Solution:
Option C: change “×” to “−”; swap digits 2 and 3.After operator change: (6 ÷ 2) − 3.Swap 2 ↔ 3 in the LHS: (6 ÷ 3) − 2.Evaluate: 6 ÷ 3 = 2; then 2 − 2 = 0 ⇒ matches the RHS.
Verification / Alternative check:
Trying other options shows they yield nonzero results (e.g., swapping ÷ and × typically produces a positive number).
Why Other Options Are Wrong:
They leave a residual positive value because division and multiplication cannot be arranged to cancel to zero without the strategic subtraction obtained here.
Common Pitfalls:
Forgetting the digit swap after the operator change, or altering the content inside parentheses incorrectly.
Final Answer:
x to -, 2 and 3 transforms the LHS to 0, making the equation true.
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