Solve interactive math questions related to the video "How Do You Solve a System of Two Equations Using the Substitution Method?".

A collection of two or more equations, that has two or more variables

Method where you use substitution of one expression in another to find the solution

A symbol, often a letter from the alphabet, which represents an unknown value.

The number in front of a variable or product of variables, showing how many you have of that variable or product of variables

Every point in the coordinate system has coordinates of the form 

. The first coordinate tells you where the point is along the 

-axis, and the second coordinate tells you where the point is placed along the 