已知|x-8y|+(4y-1)的2次方+|8z-3x|=0,求x+y+z的值
已知4x-3y+z=0,x+2y-8z=0,xyz不等于0,求x+y-z/x-y+2z的值
已知|x-8y|+2(4y-1)的2次方+3|8z-3x|=0,求x+y+z的值
已知|x-8y|+(4y-1)的2次方+|8z-3x|=0,求x+y+z的值
已知X、Y、Z满足2X-Y+4Z=8(1);X-2Y-Z=7(2)求X-Y-Z的值
1 已知想x,y,z满足2x-y+4z=8,x-2y-z=7,求x-y+z的值
已知(z-x)∧2-4(x-y)(y-x)=0求x+z-2y+8的值
已知实数x.y.z满足|4x-4y 1| 1/3根号(2y z) (z-1/2)2次方=0,求(y+Z)x的2次方的值
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.
1.已知|2x-2|+|y+3|+|2z-4|=0,求(x+y)的z次方的值.
已知{3x+4y+5z=0,2x+3y-4z=0,求x+y+z/x-y+z的值.
已知2x+3y-4z=0,3x+4y+5z=0,求x+y+z/(除以)x-y+z的值.
已知2x+3y-4z=0,3x+4y+5z=0,求x+y+z/x-y+z的值.