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- In a certain code language, 'x' represents '+', '÷' represents 'x', '-' represents '÷' and '+' represents '-'.
Question 1:
In a certain code language, 'x' represents '+', '÷' represents 'x', '-' represents '÷' and '+' represents '-'. Find out the answer to the following question.5 + 10 x 21 ÷ 5 - 15 = ?
A. 49
B. 2
C. 20
D. 34
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