3 1-x =9 July 8, 2019 16 32 64 128 3 1 x 9 3 1 x 9 2 3 1 x 9 4 3 1 x 90 3 1 x 9 7 3 1 x 9 10 3 1 x 9 5 1 3 x 96 1 3 x 900 1 3 x 9x 1 3 x 99 1 3 x 9 )= 8 1 3 x 9 16 1 3 x 9 12 1 3 x 9 11
