Răspunsuri

2014-10-06T17:57:28+03:00
2173+x+11437=25719 de unde 13610+x=25719
x=25719-13610
x=12109
 210+147=x+319
357=x+319
x=357-319
x=38

1973+(x-73)=2135
1973-73+x=2135
1900+x=2135
x=2135-1900
x=235

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