If x+y = z and x = y, then all of the following are true EXCEPT -

If x+y = z and x = y, then all of the following are true EXCEPT - Correct Answer x-y=2z

If x=y then y+y=z So, 2y=z But in option D,  x-y=2zSo,  y-y = 2z or, z =0 which is not possible  so option D is not true 
Bissoy MCQ

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