Does x + y = z?

Question

Does x + y = z?

anonymous · Answer

if so, why?

ghazi · Answer

depends what is the value of variable that you've considered

anonymous · Answer

urm... x and y?

anonymous · Answer

you are asking because of the OpenStudy title screen? http://www.openstudy.com ?

anonymous · Answer

yep :)

anonymous · Answer

(-:

Algebraically 

$$ \Large x+y = x+y $$ 
But what they use is a substitution for that. They are basically just saying let z be equal to x and y. Which is possible

anonymous · Answer

lol, as if you are actually trying to work it out xD

anonymous · Answer

you legend

anonymous · Answer

Or as a two dimensional function you can denote

$$ \Large z= f(x,y)=x+y $$
z is here a function of x and y, depending on two variables.

anonymous · Answer

Sure, and I am not even fully awake yet q-:

anonymous · Answer

but what about the inverse tangent approaching the sloping scale of a helically surrounded pivot reciprocal in the Cartesian equation following the parametric curve?!

anonymous · Answer

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anonymous · Answer

This is getting too complex for me now