若x=2^55,y=3^44,z=4^33,求x,y,z.

x=y/z=z/3,x+y+z ＝12,求2x+3y+4z是多少, 若x/3=y/4=z/5,求x+y+z/3x-2y+z的值. 若x/2=y/3=z/4不等于0,求x+y+z/x+y-z的值 若x:y:z=2:3:4,求x+y+z/x-2y+3z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4x-3y-6z=0,x+2y-7z=0,求代数式5x*5x+2y*2y-z*z/2x*2x-3y*3y-10z*10 已知x/2=y/4=z/7,求①x：y：z.②若2x+y+3z=58,分别求x,y,z的值.③求x+y/x+z的值. 若z分之x+y+z=y分之x-y+z=x分之-x+y+z,求xyz分之(x+y)(y+z)(z+x) 若X：Y：Z=2：3：4求X+Y+Z/X-2Y+3X的值 已知x/3=y/4=z/2,求x+2y-z/x+y+z=? 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