Question 759294
let x be the amount B lost to A, then

8 - x = 3/17 * (12+x)

8 - x = 3*12/17 + 3/17 * x

multiply both side of = by 17

8*17 - 17x = 36 + 3x

20x = 8*17 - 36

20x = 136 - 36

20x = 100

x = 5

A won rs 5