This video demonstrates how to evaluate an expression with two variables using substitution. [1:46]

A video that demonstrates how to solve equations with variables on both sides. The first two examples give the equation and the third example is a word problem in which an equation must be written and then solved. This video is also...

Learn how to identify the dependent and the independent variables in a word problem. [2:09]

Determine the independent and dependent variables of liner equations using real world applications. Take quiz to assess learning.

Determine which variable is independent and dependent when plotting points on a graph. Check understanding with a quiz.

This video demonstrates how to set up and solve a system of equations in order to solve a word problem concerning rates.