Odpowiedzi

2010-02-17T18:19:55+01:00
1. 2(3-2x)+1=3(x-1)
6 - 4x + 1 = 3
7 - 4x = 3 | - 7
- 4x = -3 | :(-4)
x = 3/4



2. 8(3x-2)-7x+5(12-3x)+13 (a gdzie tu znak = ?)
24x - 16 - 7x + 60 - 15x + 13
2x - 3
2010-02-17T18:20:06+01:00
1. 6-4x+1 = 3x-3
-4x-3x = -3-7
-7x = -10 / (-7)
x= 10/7

2. 24x-16-7x+60-15x+13x=0
2x+57=0
x= 28 1/2
2010-02-17T18:20:56+01:00
1. 2(3-2x)+1=3(x-1)
2. 8(3x-2)-7x+5(12-3x)+13x