1根据下列条件,分别求b分之a的值,1)b/a+b=5/72)a-b/a+b=2/52,已知x:y:z=3:4:5.1)求z/x+y.2)若x+y+z=6,求x、y、z的值3.已知2x=3y=4z,求2x-y+z/x+y+z的值4.已知1,根号2,3三个数,请再添一个数,写出一个比例式.大题是针
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![1根据下列条件,分别求b分之a的值,1)b/a+b=5/72)a-b/a+b=2/52,已知x:y:z=3:4:5.1)求z/x+y.2)若x+y+z=6,求x、y、z的值3.已知2x=3y=4z,求2x-y+z/x+y+z的值4.已知1,根号2,3三个数,请再添一个数,写出一个比例式.大题是针](/uploads/image/z/8801124-60-4.jpg?t=1%E6%A0%B9%E6%8D%AE%E4%B8%8B%E5%88%97%E6%9D%A1%E4%BB%B6%2C%E5%88%86%E5%88%AB%E6%B1%82b%E5%88%86%E4%B9%8Ba%E7%9A%84%E5%80%BC%2C1%29b%2Fa%2Bb%3D5%2F72%29a-b%2Fa%2Bb%3D2%2F52%2C%E5%B7%B2%E7%9F%A5x%3Ay%3Az%3D3%3A4%3A5.1%29%E6%B1%82z%2Fx%2By.2%29%E8%8B%A5x%2By%2Bz%3D6%2C%E6%B1%82x%E3%80%81y%E3%80%81z%E7%9A%84%E5%80%BC3.%E5%B7%B2%E7%9F%A52x%3D3y%3D4z%2C%E6%B1%822x-y%2Bz%2Fx%2By%2Bz%E7%9A%84%E5%80%BC4.%E5%B7%B2%E7%9F%A51%2C%E6%A0%B9%E5%8F%B72%2C3%E4%B8%89%E4%B8%AA%E6%95%B0%2C%E8%AF%B7%E5%86%8D%E6%B7%BB%E4%B8%80%E4%B8%AA%E6%95%B0%2C%E5%86%99%E5%87%BA%E4%B8%80%E4%B8%AA%E6%AF%94%E4%BE%8B%E5%BC%8F.%E5%A4%A7%E9%A2%98%E6%98%AF%E9%92%88)
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