# ProperSanity? May be Proportionality!

Algebra Level pending

Given that $$x$$ can only attain values of negative integers. In how many of the following equations, $$y$$ is not directly proportional to $$x$$ ?

A) $$x+y=1$$

B) $$x+y=0$$

C)$$x/y=1$$

D) $$xy=1$$

AYWC?

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