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Study Guides > Prealgebra

Introduction to Solving One-Step Equations Using Whole Numbers

Two large seashells lying in the sand on the beach, with the ocean in the background How many seashells did Bobby collect?
During his three-day beach vacation, Bobby is collecting seashells. On the last day of his trip, he picks up [latex]7[/latex] seashells and adds them to his bucket. He counts all his seashells and discovers that he has [latex]23[/latex] in all. Knowing this, how can Bobby determine how many shells he picked up over the first two days of his trip? One way he can figure it out is to write an equation. Read on to learn about properties of equations and develop your skills when solving equations.

Learning Outcomes

By the end of this section, you will be able to:
  • Determine whether a number is a solution of an equation
  • Model the Subtraction Property of Equality
  • Solve equations using the Subtraction Property of Equality
  • Solve equations using the Addition Property of Equality
  • Translate word phrases to algebraic equations
  • Translate to an equation and solve
 

readiness quiz

Before you get started, take this readiness quiz. 1) [ohm_question]144878[/ohm_question] If you missed this problem, review [link] 2) [ohm_question]141843[/ohm_question] If you missed this problem, review [link] 3) [ohm_question]144907[/ohm_question] If you missed this problem, review the following video. https://youtu.be/Hub7ku7UHT4
When some people hear the word algebra, they think of solving equations. The applications of solving equations are limitless and extend to all careers and fields. In this section, we will begin solving equations. We will start by solving basic equations, and then as we proceed through the course we will build up our skills to cover many different forms of equations.

Licenses & Attributions

CC licensed content, Shared previously

  • Seashells on the Beach. Authored by: Karunakar Rayker. Located at: https://www.flickr.com/photos/krayker/2118534978. License: CC BY: Attribution.
  • Write Algebraic Expressions from Statements: Form ax+b and a(x+b).. Authored by: James Sousa (Mathispower4u.com) for Lumen Learning. License: CC BY: Attribution.

CC licensed content, Specific attribution