(22 5/13 + y) - 9 9/13 = 7 7/13
22 5/13 + y = 7 7/13 + 9 9/13
22 5/13 + y = 17 3/13
y = 17 3/13 - 22 5/15
y = -6 11/13
(22 5/13 + y) - 9 9/13 = 7 7/13
22 5/13 + y = 7 7/13 + 9 9/13
22 5/13 + y = 17 3/13
y = 17 3/13 - 22 5/15
y = -6 11/13