1641x-8359y=28359 (1)
8359x-1641y=21641 (2)
(1)*8359:
13717119x-69872881y=237052881 (3)
(2)*1641:
13717119x-2692881y=35512881 (4)
(4)-(3):
(69872881-2692881)y=35512881-237052881
66280000y=-201540000
y=-10077/3314
1641x-8359y=28359 (1)
8359x-1641y=21641 (2)
(1)*8359:
13717119x-69872881y=237052881 (3)
(2)*1641:
13717119x-2692881y=35512881 (4)
(4)-(3):
(69872881-2692881)y=35512881-237052881
66280000y=-201540000
y=-10077/3314