已知4x-3y-6z=0,x+2y-7z=0,且x,y,z≠0,求2x+3y+6z/x+5y+5z的值.
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![已知4x-3y-6z=0,x+2y-7z=0,且x,y,z≠0,求2x+3y+6z/x+5y+5z的值.](/uploads/image/z/7216596-36-6.jpg?t=%E5%B7%B2%E7%9F%A54x-3y-6z%3D0%2Cx%2B2y-7z%3D0%2C%E4%B8%94x%2Cy%2Cz%E2%89%A00%2C%E6%B1%822x%2B3y%2B6z%2Fx%2B5y%2B5z%E7%9A%84%E5%80%BC.)
已知4x-3y-6z=0,x+2y-7z=0,且x,y,z≠0,求2x+3y+6z/x+5y+5z的值.
已知4x-3y-6z=0,x+2y-7z=0,且x,y,z≠0,求2x+3y+6z/x+5y+5z的值.
已知4x-3y-6z=0,x+2y-7z=0,且x,y,z≠0,求2x+3y+6z/x+5y+5z的值.
由已知可得 x=3z y=2z
代入要求解的式子中 2x+3y+6z=18z x+5y+5z=18z
故2x+3y+6z/x+5y+5z=1