2 1 9 7 4 9 July 8, 2019 16 32 64 128 2 1 9 7 4 9 as a fraction X 1 7 9 2 4 9 7 6 x 2 1 9 2 4 9 1 7 9 x 5 4 9 2 5 8 7 9x 4 1 2 x 9 7x Решите уравнение x 1 7 9 2 4 9 4 2 3x )+ 7 6x 1 )- 9 9x 4 2 9 1 5 7 phần 9 4 5 2 3 4 9x 1 2 7 9 9 4 w 1 9 )= 7 2 4 3x 2 9 1 3x )=- 7 3x 9