>
数学
>
(2x-1)÷6=(5x+1)÷8怎么做?求21:
人气:224 ℃ 时间:2020-06-17 09:00:08
解答
(2x-1)÷6=(5x+1)÷8
(2X-1)×4=(5X+1)×3(两边同乘24)
8X-4=15X+3
8X-15X=3+4(移项)
-7X=7(合并同类项)
X=-1
推荐
-2X=4和2x=5x-21怎么解
y=5x+3/2x-3 ={5/2(2x-3)+21/2}/2x-3,分子是怎么换算成那样?
(1)+2x+1=7 (2)3y-二分之一=三分之一 (3)x-8=2x+7 (4)2x=5x-1 (5)9-10x=9x-10 (6)五分之四x=5x-21
2x-y=6,5x+2y=-21
解不等式组 2x-8>5x+1和11-2x<21-4x
两数和为3,积为-10 求这两个数
用英语简单描写你的房间
以我的卧室写一篇英语作文
猜你喜欢
carefully
After paying 1000 dollars ____,you will all become full memebers of our club A each B all c every
Our class has a map of the world (改为同义句)
The baby didn't cry any more when she saw her mother.同义句
How do you go to school,on foot or by bus?
时间旅行的悖论
设f(x)=ax7+bx5+cx3+dx+5,其中a,b,c,d为常数.若f(-7)=-7,则f(7)=_.
计算1-3+5-7+9-11+…+97-99.
© 2024 79432.Com All Rights Reserved.
电脑版
|
手机版