> 数学 >
5x+y
7x+10y
=
1
2
,则
x
y
= ___ .
人气:229 ℃ 时间:2020-04-05 19:31:03
解答
5x+y
7x+10y
=
1
2

∴2(5x+y)=7x+10y,
∴10x+2y=7x+10y,
∴3x=8y,
x
y
=
8
3

故答案为:
8
3
推荐
猜你喜欢
© 2024 79432.Com All Rights Reserved.
电脑版|手机版