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Un ursulet costa cit 2 papusi.2 ursuleti si 3 papusi costa in total 630 lei .Cit costa o papusa?dar un ursulet? alcatuieste schema problemei.rezolva problema formulind justificari va rog frumos ajutatima urgent!

Răspuns :



u=2*p
2u+3p=630
2*2p+3p=630
7p=630
p=90

1u=2p
2u+3p=630
2*2p+3u=630
4p+3u=630
7p=630|:7
p=90

1u=180