To solve the equation x = 2x, John did it this way:
divide both sides by x, then we get 1 = 2, it's a contradiction, so
there's no solution for this equation.
Is John's answer correct?
(A) He is correct
(B) Dividing by x is wrong
(C) It can be identity if x = 0
(D) It is partially right since if x = 0, there's no solution
(E) x can be any real value, so he is incorrect
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