若2x+2y-4z=0,3x+y-z=0,则x:y:z=

2025-04-29 16:36:58
推荐回答(1个)
回答1:

z = 3x + y
2x + 2y - 12x -3y = 0
10x + y = 0
y = -5x
z = -2x
x : y : z = 1: (-5) : (-2)