Question 168129
{{{((x^2-1)/(x-1))-x=1}}} factor {{{x^2-1}}}

{{{((x+1)(x-1)/(x-1))-x=1}}}

as you can see the x-1 terms are eliminated so your left with

{{{(x+1)-x=1}}} which is 1=1.... and going through this process you can see why 1 wouldnt work.

now come up with your own equation