(5.5%x+4.5%y)-(5.5%x+4.5%y)*5%=7600
(5.5%x+4.5%y)*(1-5%)=7600
(5.5%x+4.5%y)*95%=7600
5.5%x+4.5%y=7600/0.95
5.5%x+4.5%y=8000
5.5x+4.5y=800000
55x+45y=8000000
11x+9y=1600000
令:a=10000x,b=10000y
则:11a+9b=160
只有当a、b的尾数相同时,11a+9b的尾数才能为0
通过判断可知:a=b=8
故:x=y=80000