Odpowiedzi

2009-11-25T17:11:57+01:00
2/5 ( 3 - x ) = x/3 |*15
18-6x=5x
18=11x
x=18/11

3/4 ( 2 - 3x ) = -6 |*4
6-9x=-6
12=9x
x=12/9

1/5 ( x - 3 ) = 9 - x |*5
x-3=45-5x
6x=48
x=8

0,6+x/ 2 = x + 1 |*10
6+5x=x+1
4x=-5
x=-5/4