Răspuns :
a+b+c=121
a/c= 10, rest 5 => 10c+5=a
b/c=5, rest 4 =>5c+4=b
10c+5+5c+4+c=121
16c+9=121
16c=112
c=7
a= 10*7+5=75
b= 5*7+4=39
Verificare:
7+75+39=121
R/s:
a=75
b=39
c=7
a/c= 10, rest 5 => 10c+5=a
b/c=5, rest 4 =>5c+4=b
10c+5+5c+4+c=121
16c+9=121
16c=112
c=7
a= 10*7+5=75
b= 5*7+4=39
Verificare:
7+75+39=121
R/s:
a=75
b=39
c=7
Aceasta este rezolvarea:[tex]a+b+c=121
a:c=10 rest 5 ; a=10c+5
b:c=5 rest 4 ; b=5c+4
10c+5+5c+4+c=121
16c+9=121
16c=112
c=7
a=10*7+5
a=70+5
a=75
b=5*7+4
b=35+4
b=39
Raspuns final: a=75;b=39;c=7[/tex]