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Daje najjjjjjjjkkmkjjjk​

Daje Najjjjjjjjkkmkjjjk class=

Odpowiedź :


x-pies
Kasia-3x
3x+x=40kg
4x=40kg
x=10kg
pies=10kg
Kasia=3x10kg=30kg

Odp:Kasia waży 30kg, a pies 10kg.