Arithmetic Course/Differential Equation/First Order Differential Equation

First Order Differential Equation
A differential equation is an equation that has the general form
 * $$A \frac{d f(x)}{dx} + B = 0 $$

Which can be rewritten as
 * $$\frac{d f(x)}{dx} + \frac{B}{A} = 0 $$

Equivalent to
 * $$f^'(x) = 0 $$

Solving Differential 1st Ordered Equations

 * $$A \frac{d f(x)}{dx} + B = 0 $$
 * $$\frac{d f(x)}{dx} + \frac{B}{A} = 0 $$
 * $$f(x) = - \frac{B}{A} $$