若-x/2=y/3=z/4=3则3x+4y+6z的值为
1个回答
∵-x/2=y/3=z/4=3
∴x=-6
y=9
z=12
∴3x+4y+6z
=-18+36+72
=90
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-x/2=y/3=z/4=3则3x+4y+6z的值是