Răspuns :

GabyMyha97id
x=0,25/k=1/4k
y=0,(3)/k=3/9/k=1/3/k=1/3k

1/4k +1/3k =20 Aduci la acelasi numitor (12k)
3/12k+4/12k=20
7/12k=20
7=240k
k=7/240

=>x=1/4*(7/240)=60/7
    y=1/3*(7/240)=80/7


Roxyalinareathid
Decii
x+y=20
x=0.25
y=3supra 9 = 3


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