6 7 x 9 15 July 8, 2019 16 32 64 128 5 6 7 15 x 9 7 15 5 6 x 9 10 7 6 x 9 x 1 15 7 6 x 9 x barabar 1 15 7 6 x 9 x barabar 1 bata 15 9 x 7 6 x barabar 15 9x upon 7 - 6x = 15 6' 7 x 9' 6 ' 7 x9 ' 10
