[tex]a=b+873[/tex]
[tex]a:b=12 rest15 =\ \textgreater \ a=12b+15[/tex]
Egalam expresia lui a din ambele ecuatii si rezulta:
[tex]b+873 = 12b + 15[/tex]
[tex]11b=858[/tex]
[tex]b=78[/tex]
[tex]a=b+873=78+873=951[/tex]
[tex]5*b=3*c =\ \textgreater \ 5*78 = 3*c =\ \textgreater \ c= \frac{390}{3} =130[/tex]
[tex]a+b+c= 78 + 951 + 130 = 1159[/tex]
