1. Fredholm equation. The solution of the Fredholm equation of genus II with a continuous kernel can be reduced to the solution of two functional differential equations with Cauchy conditions. This fact suggests the idea of constructing solutions of integral equations in the form of degree series. Let us consider the Fredholm equation (see Ref.) 2. Volterra equation. In this paragraph, the above considerations to the Volterra equation. We will consider applying the equation (see article).