-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
-x/2=y/3=z/4=3则3x+4y+6z的值是
-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
由-x/2=y/3=z/4=3得
x=-6 y=9 z=12
得出3x+4y+6z=90
-x/2=y/3=z/4=3
解得,x=-6、y=9、z=12
所以,
3x+4y+6z
=-18+36+72
=90
-x/2=y/3=z/4=3 则x=-6 y=9 z=12
故3x+4y+6z=3*(-6)+4*9+6*12=90
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