Sarapamparauask
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999-111×2+10+a=1000
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Răspuns :

Bsorin578ask

[tex]999-222+10+a=1000\\787+a=1000 |-787\\a=213[/tex]

Albinuta440ask

Răspuns:

999-222+10+a=1000;

777+10+a=1000

787+a=1000

a=1000-787

a=213

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