若x+3y+5z=10,5x+z+3y=8,x+y+z=?

若x+3y+5z=10,5x+z+3y=8,x+y+z=? x/2=y/3=z/5 x+3y-z/x-3y+z 若{x+3y+10z=0 则 (x+y-z)/(x-y+z) (4x-2y-z)-{5x[8y-2y-(x+y)]-x+(3y-10z)]=? kuai 若3x+7y+z=5,4x+10y+z=3,则x+y+z=? {x+y+z=1;x+3y+7z=-1;z+5y+8z=-2 x/10 = y/8 =z/9 求x+2y+3z/y-5z 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 2X+Y+Z=10,X+2Y+Z=-6,X+Y+2Z=8 5X+4Y-3Y=13,2X-3Y+7Z=19,3X-Y=2X 若x/3=y/2=z/5,则2x-3y-z/x-y+z= {2x+3y-4z=-5 x+y+z=6 x-y+3z=10 3x+2y+z=14 ,x+y+z=10,z+2x+3y=1 5