# JEE Novice - (2)

Algebra Level 2

$(y-z)^2+(z-x)^2+(x-y)^2=(y+z-2x)^2+(x+z-2y)^2+(x+y-2z)^2$

If $x,y$ and $z$ are real numbers that satisfy the equation above, then which of the following must be true?

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