4 2х 5 =- 7 6 July 8, 2019 16 32 64 128 4 3х 7 )- 6 2х 5 )= 5х 1 4 0 2х 7 )- 5 0 3х 6 )= 5 7 5 7 2х )= 6х 4 2х 5 6 4 4х 7 4х = 5/7 4 + 4 = 6
