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2 supra 7 = x supra 21= y+1 supra 35= 48 supra 27+ 4

Va rogggg

Răspuns :

CarMina03
2/7=x/21=>x=2*21/7=42/7

y+1/35=48/27+4=>y+1/35=48/31=>31(y+1)=35*48=>31*y+31=1680
=>31*y=1680-31=>31*y=1649=>y=1649/31


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