x=4 y=6 z=12
若2/x=3/y=5/z,且3x+2y-z=14,求x,y,z值
1个回答
相关问题
-
若x/2=y/3=z/5,且3x+2y-z=21,求x,y,z的值.
-
若x,y,z均为实数,且14(x^2+y^2+z^2)=(x+2y+3z)^2,求x:y:z的值
-
若 x-3 + y+2 + z-5=0求x,y,z的值,求 x + y - z
-
x-5y-3z=0 y+z-3x=3 x+y+3z=14 y+4z=3 z+x-3y=5 2x+y+z=7 2x-z=1
-
若x:y:z=2：3:4且2x+y-z=9,试求2x+3y+z的值
-
如果X:Y:Z=3:4:5,且2X+3Y-5Z=-14,则X= Y= Z=
-
如果X:Y:Z=3:4:5,且2X+3Y-5Z=-14,则X= Y= Z=
-
若|X+2|+|Y-3|=0,且x-2y+z/2=1/2y=x=z-5,求z乘z减9的值
-
x+2y+3z=14 2x+y+z=7 3x+y+2z=11 求x y z
-
z/x=3/(y- z)=5/(z+x),求(5x-y)/(y+2z)的值