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Diferenta a 2 nr.este 80.Impartind nr mare la nr.mic obtinem cat 12, rest 3 . Determinati nr.

Răspuns :

a - b = 80

a = 12b + 3

12b + 3 - b = 80

11b = 77

b = 7

a = 87


a-b=80
a:b=12 r 3=>a=12b+3
12b+3-b=80
11b+3=80
11b=80-3=>11b=77=>b=7
a=12×7+3=>a=87