Решите уравнения а) 1 целая 13/14x- 2 целых 2/3 = 1 целая 2/7 б) 2 целых 2/7*(1/3x + 1/15 )= 2,4

(1 13/14)х - 2 2/3 = 1 2/7
15х/14 - 8/3 = 9/7
15х/14 =9/7 + 8/3
15х/14 = 27/21 + 56/21
15х/14 = 83/21
х = 83/21 : 15/14
х = 83/21 • 14/15
х = 83/3 • 2/15
х = 166/45
х = 3 31/45

(2 2/7) • (1/3 х + 1/15)=2,4
9/7 • х/3 + 9/7 • 1/15 = 24/10
3х/7 + 3/35 = 12/5
3х/7 = 12/5 - 3/35
3х/7 = 84/35 - 3/35
3х/7 = 81/35
х = 81/35 : 3/7
х = 81/35 • 7/3
х = 81/15
х = 5,4