Răspuns :
a+b+c=570
a:b=2 rest 3⇒a=2b+3
c:b=5 rest 7⇒c=5b+7
2b+3+b+5b+7=570
8b+10=570
8b=270-10=560
b=560:8=70
a=2x70+3=140+3=143
c=5x70+7=350+7=357
a:b=2 rest 3⇒a=2b+3
c:b=5 rest 7⇒c=5b+7
2b+3+b+5b+7=570
8b+10=570
8b=270-10=560
b=560:8=70
a=2x70+3=140+3=143
c=5x70+7=350+7=357
a+b+c=570
a:b=2 rest 3⇒a=2b+3
c:b=5 rest 7⇒c=5b+7
2b+3+b+5b+7=570
8b+10=570
8b=270-10=560
b=560:8=70
a=2x70+3=140+3=143
c=5x70+7=350+7=357
a:b=2 rest 3⇒a=2b+3
c:b=5 rest 7⇒c=5b+7
2b+3+b+5b+7=570
8b+10=570
8b=270-10=560
b=560:8=70
a=2x70+3=140+3=143
c=5x70+7=350+7=357