Hi
It is my understanding that you want the conditions where your integral value is some constant. Following code snippet might help you.
syms x a b
y=x+2; % expression to be integrated
f=int(y,a,1);% integral limits are 1 and a
sol=solve(f==4,a)
sol will give solution to the integral equation. int is used to integrate an expression and solve is used to solve equations
%If you are looking for inequation
syms x a b
y=x+2; % expression to be integrated
f=int(y,a,1);% integral limits are 1 and a
sol=solve(f<4,a,'ReturnConditions',true)
sol.conditions will give the range of values which satisfies the inequation.
