Odpowiedzi

2010-01-10T14:10:26+01:00
2x-1=3
2x=3+1
2x=4
x=2

4x-4=0
4x=4
x=1

7x-3=2
7x=2+3
7x=5
x=⁵/₇
1 5 1
2010-01-10T14:11:03+01:00
2x -1 = 3

2x = 3 + 1
2x = 4 /:2
x = 2


4x - 4 = 0
4x = 0 + 4
4x = 4 /:4
x = 1


7x - 3 = 2
7x = 2 + 3
7x = 5 /:7
x = 5/7 = 0,71

pozdrawiam :)
2010-01-10T14:20:43+01:00
2x-1=3
2x=3+1
2x=4 /:2
x=2

4x-4=0
4x=4/:4
x=1

7x-3=2
7x=2+3
7x=5/:7
x=5 pięć siódmych
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