2x(100-y)=3(100-x)y 如何算出x詳細計算過程?
回答 (3)
2015-09-04 7:00 am
Sol
2x(100－y)=3(100－x)y
200x－2xy=300y－3xy
200x+xy=300y
x(200+y)=300y
x=300y/(200+y)
2x(100－y)=3(100－x)y
200x－2xy=300y－3xy
200x+xy=300y
x(200+y)=300y
x=300y/(200+y)
2015-09-04 8:15 am
2x(100-y)=3(100-x)y
2x(100-y)=300y-3xy
x[2(100-y)+3y]=300y
x=300y/(200-2y+3y)
x=300y/(200+y)
2x(100-y)=300y-3xy
x[2(100-y)+3y]=300y
x=300y/(200-2y+3y)
x=300y/(200+y)
收錄日期: 2021-04-18 00:10:19
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20150903173536AAOtNXg