4х 7 5 =- 1 July 8, 2019 16 32 64 128 3 4х 7 )- 5 3х 4 )= 17 5 4х 7 )- 3 12 12 4х 5 7 х 6х 7 5 4х 1 6х 7 5 4х 1 )- 16 16 3 4х 5 )= 7 2х 3 6х 3 5 4х )= 7 19х 4х = 5/7 4/7х = 1
