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Problem-Solving By Substitution
Interchange Of Signs And Numbers

Using the symbols where '+' is multiplication, '-' is division, '×' is addition, and '÷' is subtraction, what is the value of 6 ÷ 3 + 2 × 4 - 1?

Answer: C. 16
6 - 3 + 2 × 4 = 3 + 8 = 11, which is incorrect. Re-evaluate the operations.
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