How can I solve an equation with variables?

I have a problem when I want to use variables in function. I'm using Matlab version R2013a (8.1.0.604) There is a simplified example of this problem:

function main
syms x
a=5;
b=3;
c=fsolve(@ff,1);
end

function F=ff(x,a,b);
F=a*x-b*x+1;
end

Matlab's answer: Not enough input arguments (line 9) Error in fsolve fuser=feval(funfcn{3},x,varargin{:}); Error in c=fsolve(@ff,1); Caused by: Failure in initial user/supplied objective function evaluation. FSOLVE cannot continue.

Thank you for solving this problem.

Answer 1

[Sean de Wolski]

I think you want

c=fsolve(@(xx)ff(xx,a,b),1);

This will capture a and b in an anonymous function and pass it into ff.

[Renata Ruskova]

Thank you, now it works :)

[Sean de Wolski]

Please accept this answer then :)