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pepina si pepino au impreuna 10 baloane.pepina are cu 4 mai multe decat pepino

Răspuns :

P+p=10   (Pepina+pepino)
P=p+4
p+4+p=10
2p=10-4
2p=6
p=6:2
p=3 baloane are pepino
P=3+4
P=7 baloane are Pepina
V: 7+3=10
(10-4):2=6:2=3
Cate baloane are Pepino?
3 baloane
Cate baloane are Pepina ?
3+4=7 

V: 7+3=10