a : b = 4 rest 5
a = 4 b + 5
a - b = 704
4 b + 5 - b = 704
3 b =704-5
3b = 699
b = 699:3
b = 233
a=704+233
a=937
937 : 233 = 4 rest 5
a - b = 110
4 b + 5 - b = 110
3 b =110-5
3b = 105
b = 105:3
b = 35
a=35+110
a=145
145 : 35 = 4 rest 5
a - b = 425
a : b = 4 rest 5
a = 4 b + 5
a - b = 425
4 b + 5 - b = 425
3 b =425-5
3b = 420
b = 420:3
b = 140
a=140+425
a=565
565: 140 = 4 rest 5