4x - 27 - 8 = 14 - 3x
4x + 3x = 14 + 27 + 8
7x = 41 + 8
7x = 49
x = 49/7
x = 7
Проверка:
4 · 7 - 27 - 8 = 14 - 3 · 7
28 - 27 - 8 = 14 - 21
- 7 = - 7, верно!
ответ: 7.
4x - 27 - 8 = 14 - 3x
4x + 3x = 14 + 27 + 8
7x = 41 + 8
7x = 49
x = 49/7
x = 7
Проверка:
4 · 7 - 27 - 8 = 14 - 3 · 7
28 - 27 - 8 = 14 - 21
- 7 = - 7, верно!
ответ: 7.