-x/2=y/3=z/4=3则3x+4y+6z的值是
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-x/2=y/3=z/4=3则3x+4y+6z的值是
![-x/2=y/3=z/4=3则3x+4y+6z的值是](/uploads/image/z/8126932-4-2.jpg?t=-x%2F2%3Dy%2F3%3Dz%2F4%3D3%E5%88%993x%2B4y%2B6z%E7%9A%84%E5%80%BC%E6%98%AF)
-x/2=y/3=z/4=3
所以-x/2=3 y/3=3 z/4=3
则x=-6
y=9
z=12
代入3x+4y+6z
=-18+36+72
=90
所以-x/2=3 y/3=3 z/4=3
则x=-6
y=9
z=12
代入3x+4y+6z
=-18+36+72
=90
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