Răspuns :

Cristinatibulcaid
x lalele, y trandafiri, z crini

x+y+z=19
x=3y
4y+z=19⇒z=19-4y
y=1, x=3, z=15
y=2, x=6, z=11
y=3, x=9, z=7
y=4, x=12, z=3
y=5, x=15, z=19-20<0 imposibil


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