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aflati nr a,b,cdaca:a:b=3 rest 16 b:c=2. a+b+c=475

Răspuns :

a:b=3 rest 16
a=3b+16
b:c=2
c=b:2
a+b+c=475
3b+16+b+b:2=475 |×2
6b+32+2b+b=950
6b+2b+b=950-32
9b=918
b=918:9
b=102
a=3b+16
a=3×102+16
a=306+16
a=322
c=b:2
c=102:2
c=51

a=3b +16

b=2c
c=0,5b
3b+16+0,5b+b=475
4,5b=459
b=459:4,5