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=2940180x=2940x=2940/180=49/3180×=2940,×=49/
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