Final answer:
The equation x = x × 2 can only be true if x equals zero. All other values would result in a contradiction, thus the correct answer is 'None of these'.
Step-by-step explanation:
The statement x = x × 2 implies that the variable x is being multiplied by 2 and set equal to itself. This is only possible if x is 0. Hence, the only value x could be to make this statement true is 0, as any non-zero number would result in a contradiction (e.g., if x were 1, then we would have 1 = 1 × 2, which is false because 1 ≠ 2). Therefore, the equivalent statement to x = x × 2 is x = 0, which is not listed among the provided options, so the correct choice is (d) None of these.