Найди X: 10/25 = 2/x + 2 1/17 = x-1/5163/72 = 7/x+8 посчитайте ​

1)10/25 = 2/x + 2

10/25=2/x+2,x≠0

2/5=2/x+2

-2/x=2-2/5

-2/x=2-2/5

-2/x=5/8

-10=8x

8x=-10

x=-5/4, x≠0

:x=-5/4

2)1/17 = x-1/51

51=17(x-1)

3=x-1

-x=-1-3

-x=-4

:x=4

3)1/17 = x-1/51

63/72=7/x+8,x≠0

7/8=7/x+8

-7/x=57/8

-56=57x

57x=-56

x=-56/57, x≠0

x=-56/57