2X+3Y-Z=0……(1)5X-2Y-2Z=0……(2)(1)×2-(2)得x=8y(1)×5-(2)×2得z=19yX:Y:Z=8Y:Y:19Y=8:1:19
设X=12*1+3Y-Z=0、5*1-2Y-2Z=0酸楚Y,Z
8:1:19
8:1:19