Odpowiedzi

2010-03-24T21:17:15+01:00
1/4x+2=1/2x-1|* 4
x + 8 = 2x - 4
x - 2x = -4 - 8
-x = - 12 | : (-1)
x = 12
2010-03-24T21:17:39+01:00
1/4x+2 = 1/2x-1|razy 4
x+8 = 2x-4
-x = -12
x=12
2010-03-24T21:17:55+01:00
1/4*4+2=1/2*4-1
1+2=2-1
3=1