Question

If A denotes '+', B denotes '­', C denotes 'x' and D denotes '÷', then which of the following statement is true?

A) 8B6D2A4C3 = 15 B) 8A8B8C8 = ­48 C) 9C9B9D9A9 = 17 D) 3A3B3C3A3D3 = 4

Answer 1

Answer:

I not understand this question