(1 7/3х - 2 1/3) * 4 4/5 = 4/5
1 7/3х - 2 1/3 = 4/5 : 4 4/5
1 7/3х - 2 1/3 = 4/5 : 24/5
1 7/3х - 2 1/3 = 4/5 * 5/24
1 7/3х - 2 1/3 = 4/24 = 1/6
1 7/3х = 1/6 + 2 1/3
1 7/3х = 1/6 + 2 2/6
1 7/3х = 2 3/6 = 2 1/2
х = 2 1/2 : 1 7/3
х = 5/2 : 10/3
х = 5/2 * 3/10
х = 1/2 * 3/2
х = 3/4