学校航模组有39人,比电脑组人数的2倍少5人,电脑组有多少人?3M;T8^(X.Q-C-u
算式:提示5a,R:d(n-\7l4~*u;F(G3M;T8^(X.Q-C-u
答:电脑组有5w9~0t;x5m2f-z1r2W+Y人。3M;T8^(X.Q-C-u