Question

Can y=-x?

Answer 1

Incorrect

For example, say y = -1. Can x = -1 as well? No, y already represents that number and two variables can't have the same value.

Answer 2

Thanks, thats been bugging me for a while

Answer 3

Can y=-x?

Were you trying to ask `Can x=-x?`
Because in that case, Shadow is correct with his example: \(\Large\rm -1\ne-(-1)\)

But if we're talking about a relationship between `two different` variables, then yes it certainly can be true.

Take for example y=-1, x=1,
\(\Large\rm -1=-(1) \qquad\color{green}{\checkmark}\)

Answer 4

Oh and also, I guess x=-x would actually be true for x=0
I forgot about that >.<

But please, clarify your question :3