# Systems In Three Variables

### Popular Tutorials in Systems In Three Variables

#### 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!

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

The substitution method can be extended from solving a system of equations with two variables to solving a system with three variables. Follow along with the tutorial to see how this is done.

#### How Do You Find Volumes of Similar Solids?

There's a way to find out the ratio of the volumes of similar solids â€” but it's not as simple as comparing the sides. Watch this tutorial to find out how!

#### What is the Relationship Between the Surface Areas of Similar Solids?

If you have similar solids, there's a ratio that relates their surface areas. This tutorial uses similar prisms to help you find the ratio rule of the surface areas of any similar solids!