Given that the general formula of a differential equation is y = 2x + C, then the special solution of the differential equation under the initial condition x = O, y = 3 is?

Given that the general formula of a differential equation is y = 2x + C, then the special solution of the differential equation under the initial condition x = O, y = 3 is?

When x = 0, y = 2x + C = 0 + C = 3, so C = 3
So the special solution is: y = 2x + 3