I suck at math, please help me

I suck at math, please help me.
Solve this.

Simplify or solve this or whatever

>solve this
>x is a variable

Simplify it.

multiply expression by (x+1)
(x+1) - (x^2 - x) - 1
= x^2

True on (-inf, -1)U(-1, inf)

nope
True for (-inf, +inf)

if x ∈ {ℤ⋂0} → 1 - 0 - 1 = 0

good luck finding the value at -1

Not valid @ -1:
https:://www.wolframalpha.com/input/?i=1+-+x+-+1%2F(x%2B1)

This is why i hate maths.

If this is what you mean

(1-x)(1+x)-1

(0,0)

Asking for answers on Sup Forums isn't going to help you. It's just going to enable you to be a dumb fuck and continue to fail at life.

(x+1)-x(x+1)-1=0

no real roots

Thank you.

its correct and you could have done it yourself

Solve for what ?

There aren't any rules for domain and codomain.

A. 1-x-(1/X+1)
B. 1-(x-1/X+1)
C. X=1-(1/1)
D. X=1-1
E. X=0

no equals sign...

C

assume 0

yes, multiply two first terms by (x+1)/(x+1):
(x+1)/(x+1) - x(x+1)/(x+1) - 1/(x+1)
=((x+1) - x(x+1) - 1)/(x+1)
=(x-x^2-x+1-1)/(x+1)
=-x^2/(x+1)

Why assume 0?

Why not assume 1? or x^2? or INF?

-x^2 + x - 1??

That works, but isn't simpler?

because then it be equal to 1 or x(sqr) or inf