Odpowiedzi

2010-04-11T21:20:27+02:00
Zad.1
a) 3/x-2= 4/2x+1
6x+3=4x-8 / -4x
2x+3=-8 / -3
2x=-11 / :2
x=-5,5

b) 2/3=3x+2/2x-2
4x-4=9x+6 /+4
4x=9x+10 / -9x
-5x=10 / :(-5)
x=-2