# Ordinary Differential Equations/First Order

## First Order Differential EquationsEdit

The simplest types of differential equations to solve are the **first order equations**. These are equations where the highest derivative in the equation is the first. So, a first order equation is a function ; there are no occurrences of or higher derivatives.

There are two easily solved types of first order equations. These are equations with **separable variables** and **linear equations**. This chapter covers how to solve and graph any equation in one of these forms, or reducible to these forms. Other types of differential equations, such as **non-linear equations**, are not covered yet.

### 2: Separable First Order Differential EquationsEdit

### 4: First Order Linear Differential EquationsEdit

### 1: Exact Differential EquationsEdit

### 3: Substitution MethodsEdit

===5: Graphing Differential Equations

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