# Formulate systems of equations, including systems consisting of three linear equations in three variables and systems consisting of two equations, the first linear and the second quadratic

### Popular Tutorials in Formulate systems of equations, including systems consisting of three linear equations in three variables and systems consisting of two equations, the first linear and the second quadratic

#### How Do You Solve a System of Equations Using Substitution if One Equation is a Quadratic?

Substitution is a great way to solve a system of equations! In this tutorial, you'll see how the substitution method is used to solve a system of equations involving both a linear and a quadratic equation!

#### How Do You Solve a System of Equations by Graphing?

There are many different ways to solve a system of linear equations. In this tutorial, you'll see how to solve a system of linear equations by graphing both lines and finding their intersection. Take a look!

#### How Do You Solve a System of Equations in Three Variables Using Elimination?

The elimination method can be extended from solving a system of equations with two variables to solving a system with three variables. Watch the tutorial to find out how!