This video demonstrates how to use the properties of equalities to evaluate expressions. we will begin by combing like terms to solve real world problems. In this video we will solve the question: How much do my friends and I need to earn in order to attend a concert?

Originally released by Apperson, 2013. Streaming video file encoded with permission for digital streaming by Infobase on April 30, 2015.

What We Know vs. What We Need to Know (4:46); --Keeping Track of Expenses (3:18); -- Determining Cost (3:06); -- Calculating Total Cost When We Know How Many are Going (2:54); -- Calculating the Cost if Everyone Buys Different Things (4:14); -- Solving the Big Question (4:37); .