Question

x : 18 = 7 : 9
6:x=3:7
12:7=60:x

Answer 1

1) х: 18 = 7: 9
х= (7×18) : 9
х= 14

2) 6:х = 3: 7
х= (7×6): 3
х=14

3) 12: 7= 60:х
х= (7×60) : 12
х= 35