2x+5y+3z=0 (1)
2x-5y-8z=0 (2)
(1)-(2)
10y+11z=0
10y=-11z
y:z=-11:10=-22:20
(1)+(2)
4x-5z=0
4x=5z
x:z=5:4=25:20
所以x:y:z=25:(-22):20
已知{2x+5y+3x=0,2x-5y-8x=0}求x不等于0,求x:y:z的值
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