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8x+5(1000-x)=7320请问怎么解
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8x+5(1000-x)=7320请问怎么解
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答案和解析
8x+5(1000-x)=7320
8x+5000-5x=7320
3x=2320
x=2320/3
8x+5000-5x=7320
3x=2320
x=2320/3
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