若|x-2|+|Y+3|+|z-5|=O计算求|x|+|Y|+|z|的值
若|x-2|+|Y+3|+|z-5|=O计算求|x|+|Y|+|z|的值
已知x,y,z满足方程组:4x-5y+2z=o;x+4y-3x=0,求x:y:z的值
若x/3=y/4=z/5,求x+y+z/3x-2y+z的值.
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.
若2分之x+y=3分之y+z=5分之x+z 且x+y+z=18 求x,y,z的值
若x,y,z,满足3x+2y+z=5,2x+y-3z=1.y是非负数.求z的取值范围
C++计算x=2,y=3,z=4计算z+=x++||y++||++z求x,y,z的值
若x:y:z=3:4:5=6,求x-y+z分之x+y-z的值
若x:y:z=3:4:5且x+y+z=24,求x、y、z的值
若X:y:Z=3:4:5,且X+Y+Z=24,求X、Y、Z的值
若x:y:z=2:3:4,求x+y+z/x-2y+3z的值
若x/2=y/3=z/4不等于0,求x+y+z/x+y-z的值