• (8/11 - x) + 2/11 = 10/11
1. 8/11 - x + 2/11 = 10/11
2. (8+2)/11 = 10/11
3. 10/11 - x = 10/11
4. -x = 0
DG_Janja
2х + 2х = 4
4х = 4
х = 4 : 4
х = 1
проверка:
2 * 1 + 2 * 1 = 4
2 + 2 = 4
4 = 4
См. в приложении.
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Вторая строчка
24/2 = 12
48/2 = 24
64/2 = 32
66/2 = 33
84/2 = 42
Третья строчка
24/2+28 = 40
48/2+28 = 52
64/2+28 = 60
66/2+28 = 62
84/2 + 2870