If ‘×’ means ‘+’ and ‘+’ means ‘-’, which equation is incorrect?

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Accepted Answer

1. Replace the symbols: '×' → '+' and '+' → '-'.

2. Evaluate each with the new signs:
   - (a) $8+3-2=9$ ✓
   - (b) $6+4-1=9$ ✓
   - (c) $7+2-3=6$, but RHS is $8$ ✗
   - (d) $9+1-4=6$ ✓

3. Only (c) is incorrect.

FINAL_ANSWER: c

Answer

Answer

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