4x + 11.8 - x = 3.8 - 5x3x + 11.8 = 3.8 - 5x3x + 5x = 3.8 - 11.88x = -8x = -1
Проверка:4(-1) + (11.8 - (-1)) = 3.8 - 5(-1)-4 + 12.8 = 3.8 + 58.8 = 8.8
Ответ: x = -1
4x + 11.8 - x = 3.8 - 5x
3x + 11.8 = 3.8 - 5x
3x + 5x = 3.8 - 11.8
8x = -8
x = -1
Проверка:
4(-1) + (11.8 - (-1)) = 3.8 - 5(-1)
-4 + 12.8 = 3.8 + 5
8.8 = 8.8
Ответ: x = -1