5 3 4 x 7 8 9 July 8, 2019 16 32 64 128 1 2 3 4 5 x 7 8 9 10 3 5 9 х 4 7 8 1 2 3 x 4 5 6 7 8 9 2 3 x 4 5 x 6 7 x 8 9 5 6 x 9 )+ 3 4 x 1 )- 7 9 8 5 x 7 = 35 3 x-5=x+3