Răspuns :
calculeaza: 8+56:[20-(5+35:5)]
8+ 56 : (20 -12) = 8+56:8 = 15 ⇒⇒ 15 = 8+7
8+ 56 : (20 -12) = 8+56:8 = 15 ⇒⇒ 15 = 8+7
prima oara faci paranteza mica ..
8+56:[20-(5+7)]= 8+56:(20-12) = 8+56:8 = 8+7=15
8+56:[20-(5+7)]= 8+56:(20-12) = 8+56:8 = 8+7=15