Evaluation of function handler

I have function handler with e.g. 2 variable (F=@(x,y) x+y. If I want to add value to one of variables (e.g. y=2), and I need explicit form of function handle (e.i. F=@(x) x+2). what should I do?

Answer 1

[Andrei Bobrov]

F = F(x,y)x + y;
FF = @(x)F(x,2);