snakybus
Well-Known Member
Photon heeeelp us!!
Actually I suppose saying 4 x 0 = 3 x 0
is not the same as saying
4 = 3
dUde I think you have spotted the slight of hand!
yep
to get from y(x) = z(x)
to y = z
you have to divide each side of the equation by x. There's no other way. And if x = 0, you can't do that.