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At least it's not an imaginary disease where the medicine could have complex side effects.

Not sure that I'd trust a doctor that has WebMD visible on their computer :)

At least he can calculate a minimal diagnosis set ;)

I get the joke!

The system if equations is inconsistent, meaning it has no solution, so no one can get a solution and the doctor can't help.

This is because if you multiply the first equation by negative two...

-2x-4y-2z=-6

Yet the third equation sets the new left hand side equal to 5

Since -6 doesn't equal 5, it is impossible to get any solution out of the system!

Lol

And yes I am a nerd

Oops... I meant "of", not "if"

WebMD on the doctor's screen? LOL!

Thanks @Pirnez for your explanation. I had to pretend I got the joke until I read your post! :)