已知x+2y+3x=10,4x+3y+2z=15,请利用等式的性质求x+y+z
已知x+2y+3x=10,4x+3y+2z=15,请利用等式的性质求x+y+z
若有理数x、y、z满足等式(x-1)^2+(2x-y)^4+|x-3z|=0,求x、y、z的值
已知2x=3y=4z求2x-y+z分之x+y+z的值
已知x:y:z=2:3:4,且x-y+z=36,求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.
已知x:y:z=2:3:4,且x+y+z=18,求x,y,z的值
已知x:y:z=2:3:4求x-y+z分之x+y-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.
x,y,z,满足等式3x+4y/2=6x+5y/3=4x-y+13z/2,求x+2y+z/2x+3y-z的值
已知x+2y+3z=2 3x+y+2z=3 2x+3y+z=4求X+Y+Z的值
已知:x+2y+3z=2,3x+y+2z=3,2x+3y+z=4,求x+y+z的值