x/6=y/4=z/3,则(x+3y)/(3y-2z)

x/6=y/4=z/3,则(x+3y)/(3y-2z) 若x:y:z=3：4：6,则x-y+z分之x+y-z的值为? 若4x-3y-6z=0,x+2y-7z=0,则x+y+z/3x-y+z=? 已知4x-3y-6z=0,x+2y-7z=0,则x-y+z/x+y+z=_________ 已知4x-3y+6z=0 x+2y-7z=0 则x-y+z/x+y-z=? 已知{4x-3y-6z=0、x+2y-7z=0,则x-y+z：x+y+z= 已知方程组4x-y+3z=0 2x+y+6z=0且xyz不等于0,则x/y+y/z+z/x是多少 已知3X=4X,5Y=6Z求X+Y：Y+Z 若x+y+z=3y=2z,则x/x+y+z=? x+y/2=z+x/3=y+z/4 x+y+z=27 x+2y=3x+2z=4y+z 求x:y:z x/2=y/3=z/4,则x+2y-z/z=? 3x-y+z=4,2z+3y-z=12,x+y+z=6的解 已知(x-y)/13=y/7,则（x+y）/y=已知x/6=y/4=z/3(x,y,z均不为零）,则(x+3y)/(3y-2z)= 1.（X-Y）/13=Y/7问（x+y）/y=?.2.x/6=y/4=z/3(x.z.y不为0)则（X+3Y）/3Y-2Z=? 已知 x-3y+z=0 3x-3y-4z=0,则x:y:z=已知x-3y+z=0 3x-3y-4z=0则x:y:z= 三元一次方程x+y+z=0 4x+2y+z=3 9x+3y+z=6x+y+z=04x+2y+z=3 9x+3y+z=6 如果x:y=2:3,y:z=4:3,则x:y:z=