can explain this algebra equation?

if picture dosent appear click on the link below

Edit: Help you put the image properly

What is the full question? What are you supposed to do?

I assume you want to mean simplify?

To simplify, you multiply (1-x) to the numerator and the denominator.
Then you get

( 1 - x + 1 + x ) / ( 1 - x - 1 - x)
2 / (-2x)
- 1/x (shown)

required to prove LHS = RHS?

assume x <> 1, (which would give a division by zero error in the original equation anyway)

replace the 2 one's on the left (1 in the numerator and 1 in the denomiator) with "(1 - x) / (1 - x)"

i.e.

numerator : (1 - x) / (1 - x) + (1 + x) / (1 - x)

denominator : (1 - x) / (1 - x) - (1 + x) / (1 - x)

simplify...