80X+100X=2940 怎么解

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80X+100X=2940 怎么解
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80X+100X=2940 怎么解
80X+100X=2940 怎么解

80X+100X=2940 怎么解
80X+100X=2940
180x＝2940
x＝2940/180＝49/3

180×=2940,×=49/3约等于16.3