已知2x加5y加3z=0,3x减5y减8z=0,并且z≠0.求x:z和y:z.
已知2x加5y加3z=0,3x减5y减8z=0,并且z≠0.求x:z和y:z.
已知方程组3x+5y+3z=0,3x-5y-8z=0,并且z≠0,求x:z和y:z
已知方程组2x-3y-4z=0和x+y+z=0,并且z≠0,求x:y与y:z
已知2x+3y-4z=0,3x+4y-5z=0.求x+y+z除以x-y+z,
4x-3y-3z=0 x-3y+z=0 并且X Y Z不等于0 求x:z 和y:z的值
已知4x-3y-3z=0,① x-3y+z=0,②并且z不等于0,求x:z与y:z
已知x+y-z=0,2x-y+2z=0 求(3x-2y+5z)/(5x-3y+2z)的值
已知x+2y-3z=0,2x+3y+5z=0,求(x+y+z)除以(x-y+z)
已知x,y,z,同时满足方程x+3y-5z=0,2x-y-3z=0求x:y:z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.