x+y=0 30%x+40%y=160×80%

问题描述:

x+y=0 30%x+40%y=160×80%
x+y=0
30%x+40%y=160×80%

y=1280 x=-1280
30%x + 30%y=0 30%x + 30%y+10%y =160*80% 10%y=160*80% y=1280
x=0-y =-1280