Решите уравнение 9/x-2=9/2
/-дробь

9\x - 2 = 9\2

9\x = 9\2 + 2

9\x = 13\2

18 = 13x

13x = 18

x = 18\13

x = 18\13 = 1 5\13

9/х-2=9/2

9/х=9/2+2,

9/х=4ц1/2+2

9/х=6ц1/2(=13/2)

х=9:6ц1/2 (9:6ц1/2=9:13/2=9*2/13=18/13=1ц5/13)

х=1ц5/13