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a - b = 725 ; a : b = 37 rest 5 ; a = ? ; b = ?.

Răspuns :

a-b=725
a=37b+5 si le scadem
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-b=725-37b-5
36b=720
b=20
a=725+20=745
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a-b=725
a=37b r 5
________________
-b=725-37b+5
36b=725
b=725:36
b=20
a=725+20=>
a=745.