Odpowiedzi

2010-02-05T15:07:47+01:00
15 - 3x = x + 2
- 3x - x = 2 - 15
- 4x = - 13
x = 13/4 = 3,25
2010-02-05T15:12:20+01:00
15-3x=x+2
-3x-3=2-15
-4x=-13
x=-13:-4
x=3,25
2010-02-05T15:17:01+01:00