3/x=4/y=5/z,求2x/x+y+2的值快牙
来源:学生作业帮助网 编辑:作业帮 时间:2024/09/01 14:30:06
![3/x=4/y=5/z,求2x/x+y+2的值快牙](/uploads/image/z/977996-20-6.jpg?t=3%EF%BC%8Fx%3D4%EF%BC%8Fy%3D5%EF%BC%8Fz%2C%E6%B1%822x%2Fx%2By%2B2%E7%9A%84%E5%80%BC%E5%BF%AB%E7%89%99)
x)3~HVښ*g*++jyڰ;g$EΆT+^RekcfB Tp֥OMڱH"ٌ3>߽/}9}~qAbf0hbmm7ą3#l鉴5QQH([#&ڦ0 d@53AFZ l
<ܝ
3/x=4/y=5/z,求2x/x+y+2的值快牙
3/x=4/y=5/z,求2x/x+y+2的值
快牙
3/x=4/y=5/z,求2x/x+y+2的值快牙
令z=5则x=3 y=4
代入得到2/3
不明白继续追问
令X/3=Y/4=Z/5=K
则X=3K,Y=4K,Z=5K
X+Y+Z=24
3K+4K+5K=24
12K=24
K=2
X=3K=6
Y=4K=8
Z=5K=10
x+2y=3x+2z=4y+z 求x:y:z
设|x|-|y|+|z|=|x+y+z|,且|x+y|=4,|y+z|=5,|y|=3,求(x-y-z)^2的值
已知(x+y)(x+z)=x,(y+z)(y+x)=2y,(z+x)(z+y)=3z,求x,y,z
3x=4y 2y=5z 试求x:y:z
已知x::y:z=3:4:5,(1)求x+y分之z的值;(2)若x+y+z=6,求x,y,z.
2x+Y+3z=23,x+4y+5z=36,求X+2Y+3z~
已知{x-5y+2z=0 3x-5y-4z=0,求x:y:z
已知2x+5y+4z=6 3x+y-7z=-4求x+y-z
若x/3=y/4=z/5,求x+y+z/3x-2y+z的值.
x/3=y/4=z/5,求x+y+z/3x-2y+z的值,
已知X:Y:Z=3:4:5,求4X+3Y-2Z/X+Y+Z的值
已知x/4=y/5=z/6 求x+y+z/3x-2y+z的值
已知x/4=y/5=z/6,求x+y+z/3x-2y+z的值.
5x+3y+2z=2011 4x+6y+7z=2012 求x+y+z
已知3X=4X,5Y=6Z求X+Y:Y+Z
(x+y):(y+z):(z+x)=3:4:5 3x+y-z=-4已知(x+y):(y+z):(z+x)=3:4:5 ;3x+y-z=-4求x y z
方程组{x/2+y/3-z=-5,x/3-y/2+z/2=10,x/2-y/3-z/4=6,求x,y,z
x+y-2z=5 2x-y-z=4 3x+y-3z=10;分别求x、y、z的值.