>
数学
>
0.4(y一0.2)十1.5二0.7y一0.38这道题如何解方程?
人气:249 ℃ 时间:2020-04-18 12:17:25
解答
0.4(y一0.2)十1.5=0.7y一0.38
0.4y-0.08+1.5=0.7y-0.38
0.4y+1.42=0.7y-0.38
0.7y-0.4y=1.42+0.38
0.3y=1.8
y=6
推荐
解方程 0.4(y-0.2)+1.5=0.7y-0.38
0.4(y一0.2)十1.5二0.7y一0.38这道题如何解方程?
方程组 (1)x+2y=3,3x-y=5 (2)3分之x-2=5分之y+4,2x-7y=90 (3)3m-4n=7,9m-10n+25=0 这3道题怎么算
解方程:3-1/5(5-2y)=4-1/10(4-7y)+1/2(y+2)
解方程{2x-3y=0,6x-7y=2/3
--He got the first place in the test!--Not___,he is the most hard-worling student in our class.
How do you like my paper? It's a great , your use of quotations___ A.in theory B.in particular
组优美的句子
猜你喜欢
一个数的七分之三是24,这个数是多少
I sit in front of her.(同义句转换)
在等差数列an中 公差为d 若S10=4S5,求a1/d
I'm sad to be here watching you all hearing back home这句话是什么意思?
The students under the tree are chatting under the tree 划线提问
求3个关于宽容的事例,3句名言~
语文中名词,形容词,动词,副词等词在句子中作什么成分
这橡皮擦是谁的,译英.
© 2024 79432.Com All Rights Reserved.
电脑版
|
手机版