Odpowiedzi

2010-02-07T17:18:33+01:00
3 - 2x - x - 4 - 2x - 5 = 3x - 4 - 5x - 7
-5x - 6 = -2x - 11
-3x = - 5 /(-3)
x = 5/3

pzdr ;)
2010-02-07T17:24:56+01:00
(3-2x)-(x+4)-(2x+5)=(3x-4)-(5x+7)
3-2x-x-4-2x-5=3x-4-5x-7
-5x-6=-11-2x
-3x=-5 /:(-3)
x=5/3
2010-02-07T17:47:59+01:00
3-2x-x-4-2x-5=3x-4-5x-7
-5x-6=-2x-11
-5x+2x=-11+6
-3x=-5
x=-5/:(-3)
x=5/3

Pozdro;*)