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来自邱晓峰的问题

  Agirlhasbrotherandsister.shehasasmanybrothersasshehassisters.herbrotherstwiceasmanysistersashehasbrothers.Howmanychildren?请看补充!Agirlhasbrothersandsisters.shehasasmanybrothersasshehassisters.herbrothers

  Agirlhasbrotherandsister.

  shehasasmanybrothersasshehassisters.

  herbrotherstwiceasmanysistersashehasbrothers.

  Howmanychildren?

  请看补充!Agirlhasbrothersandsisters.

  shehasasmanybrothersasshehassisters.

  herbrotherstwiceasmanysistersashehasbrothers.

  Howmanychildren?

1回答
2020-03-14 01:39
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林晓志

  supposexgirlsandyboys

  x-1=y

  x=2*(y-1)

  x=4

  y=3

  x+y=7

  Thereare7children

2020-03-14 01:41:14

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