> 英语 >
if x+2x is 5 more than y+2y ,then x-y=?
人气:128 ℃ 时间:2020-06-15 09:48:44
解答
(x+2x)-(y+2y)=5
that is
3x-3y=5
3(x-y)=5
so
x-y=5/3
推荐
猜你喜欢
© 2026 79432.Com All Rights Reserved.
电脑版|手机版