8359a+1641b=28359
1641a+8359b=21641
(8359a+1641a)+(1641b+8359b)=28359+21641
10000a+10000b=50000
a+b=5
1641a+1641b=8205
8359a+1641b=28359
(8359a-1641a)=(28359-8205)
6718a=20154
a=3
b=2
8359a+1641b=28359
1641a+8359b=21641
(8359a+1641a)+(1641b+8359b)=28359+21641
10000a+10000b=50000
a+b=5
1641a+1641b=8205
8359a+1641b=28359
(8359a-1641a)=(28359-8205)
6718a=20154
a=3
b=2