x-25%x-(25%x-5)=20的答案是?

2026-05-18 15:36:58
推荐回答(1个)
回答1:

x-25%-(25%x-5)=20x=20+(25%x-5)+25%x=20+25%x-5+25%x-25%x=15.250.75x=15.25x=20又3分之1