18/30 - x = 4/30 + 6/30
х=4/5
(13/67 + 6/67) - x = 9/67
х=10/67
10/15 + (5/15 - x) = 14/15
х=1/15
34/60 + 8/60 + y = 41/60 + 16/60
у=1/4
64/70 - (x + 26/70) = 5/70
х=33/70
x + 27/46 = 35/46 + 2/46
х=5/23
18/30 - x = 4/30 + 6/30
х=4/5
(13/67 + 6/67) - x = 9/67
х=10/67
10/15 + (5/15 - x) = 14/15
х=1/15
34/60 + 8/60 + y = 41/60 + 16/60
у=1/4
64/70 - (x + 26/70) = 5/70
х=33/70
x + 27/46 = 35/46 + 2/46
х=5/23