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aflati nr de forna ab stiind ca ab-ba=36.urgent multumesc si coroana

Răspuns :

ab-ba=36
10a+b-10b-a=36
9a-9b=36
9(a-b)=36
a-b=36:9
a-b=4
0<a,b<10

daca a=5 , b=1
daca a=6, b=2
daca a=7, b=3
daca a=8, b=4
daca a=9, b=5