5 9 - х= - 4 1 July 8, 2019 16 32 64 128 5 9 x 4 1 2 5 9 x 4 10 5 9 x 4 1 5 9 x 4 11 9 5 x 12 4 5 9 4 11 5 9 4 15 5 9 4 10 5 9 4 1 5 9 4 18 5 9 4 12 5 9 4 11 height difference 5 9 4 10 7 5 9 4 13 3 х 9 )+ 5 х 4 )= 1
