X 10 x x 3 9 = 4 8 July 8, 2019 16 32 64 128 X 10 x 3 9 4 8 X 10 + x x 3 9 = 4 8 X 1 10 x 2 9 x 3 8 x 4 7 10 x 4 )- 9 x 3 )- 1 8 x 3 8 9 x 3 4 x 10 6 x 12 15 5 9 x 3 4 x 8 10 4 10 x 3 9 x 6 8 Tìm x x 10 x 3 9 4 8 9 x 8 = 3 x 3 = 9
