Răspuns :
(a+b+c+d+e+f+g):7=138
a+b+c+d+e+f+g=138x7
a+b+c+d+e+f+g=966
a+b+c+d+e+f+g=138x7
a+b+c+d+e+f+g=966
Notam astfel :
[tex] \frac{a+b+c+d+e+f+g}{7}=138--\ \textgreater \ a+b+c+d+e+f+g=138*7--\ \textgreater \ [/tex]
a+b+c+d+e+f+g=966
[tex] \frac{a+b+c+d+e+f+g}{7}=138--\ \textgreater \ a+b+c+d+e+f+g=138*7--\ \textgreater \ [/tex]
a+b+c+d+e+f+g=966