>
数学
>
已知方程2x+2y+3z=6且x+3y+5z=10,求2z-x+y的值
人气:291 ℃ 时间:2019-12-24 22:25:50
解答
(x+3y+5z)-(2x+2y+3z)
=-x+y+2z
=2z-x+y
=10-6=4
推荐
已知方程2x+2y+3z=10且x+3y+5z=1,求2z+y-x的值
2x+2y+3z=10且x+3y+5z=1 求2z+y-x的值
解三元一次方程,2x-3y-2z=13 2x+2y+3z=-2 3x-4y-5z=23
解下列方程组:(1)x+2y=9 y-3z=-5 5z-x=14 (2)x:y=3:2 y:z=5:4 x+y+z=66 (3)2x-2y+z=0 2x+y-z=1 x+3y-2z=1
已知x+2y-3z=0,2x+3y+5z=0,则x+y+z/x-y+z= _ .
因式分解x^4-3x^3+1
描写夏天句子
苹果比梨多24个,苹果是梨的4倍,求算式
猜你喜欢
This is inform you of the technical specifications of our tablets这句话怎么翻译
Lily has a good friend,Her name is Wang Ran.She is from China.She is ten years old.
在Rt△ABC中,∠C=90°,∠A=30°,BC=4,解这个直角三角形.
说“这三克镭展示了一位科学家伟大的人格”是因为?
a+b=3 a的平方加b的平方等于5 球ab的值
英语翻译
狐狸和山羊,山羊听了狐狸的话会怎么想?
She is a very () person,who cares a lot about what others think of her. A powerfulB intelligentC sensitive D attractive
© 2024 79432.Com All Rights Reserved.
电脑版
|
手机版