5 7 9 4 3 x 2 July 8, 2019 16 32 64 128 7 9 x 3 4 х 5 21 9 8 7 x 6 5 4 3 2 x 1 ) If the arithmetic mean of 5 7 9 4 3 x 2 5 3x 7 )- 3 x 9 )= 4 3x 2 5 6 7 9 x 4 3 1 2 7 4 x 29 5 7 5 x 9 4 3 2 13 2x 7 5 x 9 x 3 4 x 2x 7 5 x 9 x 3 4 x 7 6 5 2 x 7 5 x 9 3 x 4 6 5 x 7 = 35 5 + 9 = 14