Question

lf 'x'=' -', '-'='+', '+'='÷','÷'= 'x', which equation is correct?

• A. 14 + 2 - 6 × 1 = 10
• B. 12 - 4+ 2 × 2 = 12
• C. 10 × 2 + 4 - 1 = 23
• D. 20-2×3+4=18

Answer 1

Answer:

B. 12 - 4+ 2 × 2 = 12

The symbol replacements are:

• × means −

• − means +

• + means ÷

• ÷ means ×

Now check each option.

1. 14 + 2 - 6 × 1 = 10

   Becomes:
   $(14 \div 2 + 6 - 1)$

   (= 7 + 6 - 1 = 12)

2. 12 - 4 + 2 × 2 = 12

   Becomes:
   $(12 + 4 \div 2 - 2)$

   (= 12 + 2 - 2 = 12)

3. 10 × 2 + 4 - 1 = 23

   Becomes:
   $(10 - 2 \div 4 + 1)$

   (= 10 - 0.5 + 1 = 10.5)

4. 20 - 2 × 3 + 4 = 18

   Becomes:
   $(20 + 2 - 3 \div 4)$

   (= 22 - 0.75 = 21.25)

✅ Correct equation:

12 - 4 + 2 × 2 = 12