DETERMINA VALOAREA LUI ,,a''DIN (324:6+345)*2+1237=43*a+1357

Răspuns :

(324:6+345)*2+1237=43*a+1357
(54+345)*2+1237-1357=43a
399*2+1237-1357=43a
798+1237-1357=43a
43a=678
a=15,7