Question

simplify; 1/1-x-x/1+x+2/1-x

Answer 1

[ 1 - (1/x)) ] / [(x - 2) + 1/x ] 
= [ x - 1 ] / (x^2 - 2x + 1) 
= (x - 1) / (x - 1)^2 
= 1 / (x - 1)

Answer 2

1/1-x-x/1+x+2/1 = -2x+3