已知a,b,c满足{4a-5b+2c=0,a+4b-3c=0} 且abc不等于0,则a:b:c=?
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![已知a,b,c满足{4a-5b+2c=0,a+4b-3c=0} 且abc不等于0,则a:b:c=?](/uploads/image/z/941942-38-2.jpg?t=%E5%B7%B2%E7%9F%A5a%2Cb%2Cc%E6%BB%A1%E8%B6%B3%7B4a-5b%2B2c%3D0%2Ca%2B4b-3c%3D0%7D+%E4%B8%94abc%E4%B8%8D%E7%AD%89%E4%BA%8E0%2C%E5%88%99a%3Ab%3Ac%3D%3F)
已知a,b,c满足{4a-5b+2c=0,a+4b-3c=0} 且abc不等于0,则a:b:c=?
已知a,b,c满足{4a-5b+2c=0,a+4b-3c=0} 且abc不等于0,则a:b:c=?
已知a,b,c满足{4a-5b+2c=0,a+4b-3c=0} 且abc不等于0,则a:b:c=?
两式相加得,5a-b-c=0
直接赋值,令a=1,解得b=2,c=3
a:b:c=1:2:3
是数学题吗?