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ex 11 repede va rog dau coroana


Ex 11 Repede Va Rog Dau Coroana class=

Răspuns :

5a+25-2×25+13,5=63,5
5a+35-50=63,5-13,5
5a+35=50+50
5a=100-35
a=75:5
a=15