600x十500x(100-x)=56000 x=60

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600x十500x(100-x)=56000x=60600x十500x(100-x)=56000x=60600x十500x(100-x)=56000x=60600x+50000-500x=560001

600x十500x(100-x)=56000 x=60
600x十500x(100-x)=56000 x=60

600x十500x(100-x)=56000 x=60
600x+50000-500x=56000
100x+50000=56000
100x=56000-50000
100x=6000
解得,x=60