[x+y=110,50x+40y=50(1+10%)x+40(1-15%)y]
问题描述:
[x+y=110,50x+40y=50(1+10%)x+40(1-15%)y]
答
x=220/3
y=110/3
[x+y=110,50x+40y=50(1+10%)x+40(1-15%)y]
x=220/3
y=110/3