Question

кто сделает дам 50 баллов СРОЧНОООООО!!!!!​

Answer 1

Пошаговое объяснение:

№1

х/20 - 2/5 = 11/20

х/20 = 11/20 + 2/5

х/20 = 11/20 + 8/20

х/20 = 19/20

х = 19/20 * 20

х = 19/1 * 1

х = 19/1

х = 19

5/6 - х/18 = 7/18 | * 18

15 - х = 7

х = 15 - 7

х = 8

2/3 - х/24 = 3/8 | * 24

16 - х = 9

х = 16 - 9

х = 7

х/45 - 2/15 = 7/9 | * 45

х - 6 = 35

х = 35 + 6

х = 41

№2

1/2 - 2/5 = 5/10 - 4/10 = 1/10

1/4 - 1/5 = 5/20 - 4/20 = 1/20

3/5 - 2/7 = 21/35 - 10/35 = 11/35

8/9 - 7/15 = 40/45 - 21/45 = 19/45