Published on 11/24/2011

#### Activity Overview

Solve one-step and two-step linear equations where *a* and *b* are real numbers.

#### Objectives

- Solve "one-step" linear equations of the form
*x*+*a*=*b*and*ax*=*b*where*a*and*b*are real numbers - Solve "two-step" linear equations of the form
*ax*+*b*=*c*where*a*and*b*are real numbers

#### About the Lesson

Students are given quotes verbally and asked to write each quote as a formula in the variable *n*. They enter the formulas into a calculator application and use a spreadsheet application to display a table of values. Students use these tables to determine the value of a quote corresponding to a given number of guests and, conversely, the number of guests that correspond to a particular quote. In this process, students solve linear equations of the form *ax* + *b* = *c* informally.

©Brendan Kelly Publishing, Inc. Reprinted with permission. www.brendankellypublishing.com