Odpowiedzi

2009-11-12T21:25:57+01:00
(2x-3)/(x+1)-1= x/(x-1) /(x-1)(x+1)
(2x-3)(x-1)-1(x-1)(x+1)= x(x+1)
(2x²-2x-3x+3)-(x²-1)= x²+x
2x²-2x-3x+3-x²+1= x²+x
-2x-3x+3+1=+x
-6x=-2
x=2/6
x=1/3