Odpowiedzi

2010-03-22T19:35:43+01:00
2x-3x+5/4=-1/4x-1
-x+5/4=-1/4x-1
-x+1/4x=-5-1
-3/4x=-6
3x=24
x=8
2010-03-22T19:36:16+01:00
8x-12x+5=x-4
8x-12x-x=-4-5
-5x=-9/:(-5)
x=9/5
x=1 i cztery piate