已知x/3=y/5=z/6,求3x-2y+z/2x+y+2z的值
来源:学生作业帮助网 编辑:作业帮 时间:2024/08/17 03:24:35
xSN@IHZCvCtSXR&D!tڲ@Xs;sgR^ËYFYAz6xVN-ZrYV+awV=cs'ƿϏ?rMSLLeS#يSL g0:YB
1"Ca/1,4@VqN24ªq!hUd`^w}9`VhoiٴyO3$9p
9JK1oit8! s0ո8i\N*=Dw]8`zddH[wo`KY U3!K(QB(6+%`(MðY]PdEϬ"<}*5H>1>h֝Q)?a
已知2x+5y+4z=6 3x+y-7z=-4求x+y-z
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.
已知(x+y)(x+z)=x,(y+z)(y+x)=2y,(z+x)(z+y)=3z,求x,y,z
已知3X=4X,5Y=6Z求X+Y: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.
已知4x-3y-6z=0,x+2y-7z=0,求5x+2y-z/2x-3y-10z
已知x:y=3:6,y:z=8:5求x:y:z
已知x:y=3:5 y:z=6:1,求x:y:z( ):( ):( )
已知3x=4Y,5Y=6Z,求 (1)x:y:z;(2)x+y/y+z.请说明道理,
已知3x=4Y,5Y=6Z,求 (1)x:y:z;(2)x+y/y+z
已知{x-5y+2z=0 3x-5y-4z=0,求x:y:z
已知x:y:z=1:3:5,求(2x+3y-z)/(x+y-2z)的值
已知X:Y:Z=3:4:5,求4X+3Y-2Z/X+Y+Z的值
已知实数x y z满足x/(x+1)=y/(y+2)=z/(z+3)=(x+y+z)/3,求x+y+z的值
已知实数x y z满足x/(x+1)=y/(y+2)=z/(z+3)=(x+y+z)/3,求x+y+z的值
已知z、y、z同时满足x+3y-5z=0,2x-y-3z=0,求x:y:z
已知x+y-z=0,2x-y+2z=0 求(3x-2y+5z)/(5x-3y+2z)的值