Verified answer

8/9х = 2/9            5/9х = 1          4/7х = 16            5х = 4/5

х = 2/9 : 8/9         х = 1 : 5/9       х = 16 : 4/7         х = 4/5 : 5

х = 2/9 * 9/8         х = 9/5            х = 16 * 7/4        х = 4/5 * 1/5

х = 2/8                 х = 1 4/5         х = 28                 х = 4/25

х = 1/4

х : 9/16 = 32/45         7 1/5 : х = 9/10         6/7х = 2/7          8/11х = 1

х = 32/45 * 9/16         х = 7 1/5 : 9/10        х = 2/7 : 6/7        х = 1 : 8/11

х = 2/5                       х = 36/5 * 10/9         х = 2/7 * 7/6       х = 11/8 

                                  х = 8                         х = 2/6

                                                                   х = 1/3

5/6х = 25          6х = 1/4           х : 8/25 = 5/32      4 2/7 : х = 6/35

х = 25 : 5/6       х = 1/4 : 6        х = 5/32 * 8/25      30/7 : х = 6/35

х = 25 * 6/5      х = 1/4 * 1/6     х = 1/20                 х = 30/7 : 6/35

х = 30              х = 1/24                                          х = 30/7 * 35/6

                                                                               х = 25