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!